Stop installing apt.getmailspring.com on Debian—it will not exist

app/build/resources/linux/debian/postinst

@@ -15,139 +15,10 @@
 # for details, see http://www.debian.org/doc/debian-policy/ or
 # the debian-policy package
 
-UBUNTU_CODENAMES="precise trusty utopic vivid" # "xenial is not yet available in mailspring repos."
-DEBIAN_CODENAMES="squeeze wheezy jessie sid"
-
 case "$1" in
     configure)
     	gtk-update-icon-cache /usr/share/icons/hicolor > /dev/null 2>&1
-
-        DISTRO=`lsb_release -s -i`
-        DISTRO_UPSTREAM=`lsb_release -s -i -u || true`
-
-        if [ "$DISTRO" = "Ubuntu" ] || [ "$DISTRO_UPSTREAM" = "Ubuntu" ]; then
-          DISTS=$UBUNTU_CODENAMES
-          DISTRO="ubuntu"
-        elif [ "$DISTRO" = "Debian" ]; then
-          DISTS=$DEBIAN_CODENAMES
-          DISTRO="debian"
-        else
-          echo "You are not running Debian, Ubuntu, or an Ubuntu derivative.  Not adding mailspring repository."
-          DISTRO=""
-        fi
-
-        if [ -n "$DISTRO" ]; then
-          # Add the mailspring repository.
-          # Copyright (c) 2009 The Chromium Authors. All rights reserved.
-          # Use of this source code is governed by a BSD-style license.
-
-          # Install the repository signing key
-          install_key() {
-            APT_KEY="`which apt-key 2> /dev/null`"
-            if [ -x "$APT_KEY" ]; then
-              "$APT_KEY" add - >/dev/null 2>&1 <<KEYDATA
------BEGIN PGP PUBLIC KEY BLOCK-----
-Version: GnuPG v1
-
-mQSuBFX0SVwRDACLnMu8V6T6fyp5n5x/ZpOUuI1AEWkPfRUzF/lVdo2P7llJw1xG
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-xbyM7PbwsHkefMtcHNfX74SLMdxq3gGgWlds2UOBuWlB2arz8x7WhnvwcWwtYeuo
-+P/suo69vWRsP4vm/8XPi07NU9s0Kny/bpB2CF8lMlwg/C2NiFyzMW236WH6obJ9
-ACkcrPpxfgjPuhppTQuMUp0wB++nIZdzzAGQpiqGgPq7vCSnXrSR/pFZYWWPdq5C
-64cmHLO1LaO18+41ogL1zAkPadf+T6i6APq3M6jWsOmEME1bnjoQjhvR2xt7st1R
-IyRWK7Yj/9EeMtTbsTOHwR2qcQknRlNgiCny3hRiNP8Dy3AlaZqiwfYAgX5/cfUr
-wtbJzv1tFfIBFXOzFBl2zsHLkCm/FGoeWxZDe1S3YzgSsJlNxSJRmrUPRHTItDIb
-/03MvSm6gp2J9t8BALaFZEOHCYNqoxXHGIsfwjnrnQqRG59jlx+dgk+JALZnC/92
-zkt2i5BRxF3HkyAqA1L+M8daomESQvEjHMtGSQrGK6B/VzYQYVigyn91c41E2ijh
-0cvzDj2m0jgmI1CwsC3B9FR3IPAZwip9PC65yU8Z95VnmcPEbOLJ4CLPPXV/8x+I
-vEyqp9ePRVyfz1x2dlBWCq+sIjVqiMPMNT49+mfAdOBwikt+F9z+F+3ao1XfX2z3
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-8/OUw5UNuPJ3oDZW8rPNlWT4EehP+1QuXhd4I59Xbm3OCAFDMPrX/uWNB8s2kFkn
-6CuzqOWOmNimukKqy6gnrRvMzHV1afQDDL77qOA79hEDW715gkZ4QPO5yjNdKUAL
-/3RkuNaCxmYa7Ny+nU6xQvbQM/Kp/RpNTNgy31LyvpRQY4mskEmIJcuxc6CXmpPI
-psdbHTMzK0qByfRFtkAVD4p+AuWuEc+SMWx5lHy62TObPpGtgkjPCy4u0K2ntx7w
-vaM9x33q+aLC/GKRADQSbtKVbBO5ei/OnQv0Bo4QkBHNVz92P5jlhLiwh3VDWkc+
-vvFeXI2UxvDpQ4AVrM0QWmyIWRjLjWrP5aoIo9Q3druTgsWIE+hsWWKUda2ajhh+
-6Jg2HYSzvMxB3W1sMl+ezrksKSr9ziFUGOObxnPBVM7AI2qa0zqkLF6WyUGY4SEZ
-GFL7jsahos27wLcz5bVMM12Y7k2YIlmzxK9TY2sfn4Z43uvwB9/rUbOGdRm5G24I
-XGicrvcnB0oFtvlmgRkPt3prEWEwRIIGWrU1K8OL52dSovUoD5rkmBCeQ7WITQbT
-tmyBiNmoD16Eo1p77NDSgNjvJS1BjLuo7co4mIqZmsK0xJuWNh4WaJ9AFaxAqeep
-DLQeTnlsYXMgVGVhbSA8c3VwcG9ydEBueWxhcy5jb20+iHcEExEIAB8FAlX0SVwC
-GwMFCwkIBwMFFQoJCAsDFgIDAh4BAheAAAoJEDj8bpZ9Cs9KTNkA/jsks9Q89PaS
-dZVWAsu8QAqbMQQkrk4QFr0Aha5P0vRfAP43CgplwMIQkdDxf02Etuj8JYdzRGdm
-MKFYFOTibEgbfw==
-=3EXM
------END PGP PUBLIC KEY BLOCK-----
-KEYDATA
-            fi
-          }
-
-          DISTRIB_CODENAME=`lsb_release -s -c`
-          DISTRIB_UPSTREAM_CODENAME=`lsb_release -s -c -u`
-
-          for DIST in $DISTS; do
-              REPO=$DIST
-              if [ "$DIST" = "$DISTRIB_CODENAME" ] || [ "$DIST" = "$DISTRIB_UPSTREAM_CODENAME" ]; then
-                break
-              fi
-          done
-
-          REPOCONFIG="deb [arch=i386,amd64] http://apt.getmailspring.com/$DISTRO $REPO main"
-
-          APT_GET="`which apt-get 2> /dev/null`"
-          APT_CONFIG="`which apt-config 2> /dev/null`"
-
-          # Parse apt configuration and return requested variable value.
-          apt_config_val() {
-            APTVAR="$1"
-            if [ -x "$APT_CONFIG" ]; then
-              "$APT_CONFIG" dump | sed -e "/^$APTVAR /"'!d' -e "s/^$APTVAR \"\(.*\)\".*/\1/"
-            fi
-          }
-
-          # Set variables for the locations of the apt sources lists.
-          find_apt_sources() {
-            APTDIR=$(apt_config_val Dir)
-            APTETC=$(apt_config_val 'Dir::Etc')
-            APT_SOURCES="$APTDIR$APTETC$(apt_config_val 'Dir::Etc::sourcelist')"
-            APT_SOURCESDIR="$APTDIR$APTETC$(apt_config_val 'Dir::Etc::sourceparts')"
-          }
-
-          # Add the mailspring repository to the apt sources.
-          # Returns:
-          # 0 - no update necessary
-          # 1 - sources were updated
-          # 2 - error
-          update_sources_lists() {
-            if [ ! "$REPOCONFIG" ]; then
-              return 0
-            fi
-
-            find_apt_sources
-
-            if [ -d "$APT_SOURCESDIR" ]; then
-              # Nothing to do if it's already there.
-              SOURCELIST=$(grep -H "$REPOCONFIG" "$APT_SOURCESDIR/mailspring.list" \
-                2>/dev/null | cut -d ':' -f 1)
-              if [ -n "$SOURCELIST" ]; then
-                return 0
-              fi
-
-              printf "$REPOCONFIG\n" > "$APT_SOURCESDIR/mailspring.list"
-              if [ $? -eq 0 ]; then
-                return 1
-              fi
-            fi
-            return 2
-          }
-
-          install_key
-          update_sources_lists
-
-        fi
-	;;
+  	;;
 
     abort-upgrade|abort-remove|abort-deconfigure)
     ;;