snap: Remove framework snap prompt

Now that https://github.com/snapcore/snapcraft/pull/3596 has been
released in snapcraft 6.0.1, drop the prompt that tells users to
disconnect the old framework snap.

Also drop --enable-experimental-extensions from CI  because kde-neon
has been declared stable for core20.

.github/workflows/publish-edge-snap.yml

@@ -12,8 +12,6 @@ jobs:
     - uses: actions/checkout@v2
     - uses: snapcore/action-build@v1
       id: build
-      with:
-        snapcraft-args: --enable-experimental-extensions
     - uses: snapcore/action-publish@v1
       with:
         store_login: ${{ secrets.STORE_LOGIN }}

build-aux/snap/local/launchers/qelectrotech-launch

@@ -1,17 +1,5 @@
 #!/bin/sh
 
-# check if _only_ the correct framework snap is connected
-framework_name=$(grep "name:" $SNAP/kf5/meta/snap.yaml | cut -d" " -f2)
-if [ "$framework_name" != "kde-frameworks-5-qt-5-15-3-core20" ]; then
-  downloads_dir=$(xdg-user-dir DOWNLOAD)
-  test ! -d "$downloads_dir" && mkdir -p "$downloads_dir"
-  instructions_file="snap.qelectrotech.update-instructions.html"
-  target="$downloads_dir/$instructions_file"
-  cp "$SNAP/update-instructions/$instructions_file" "$target"
-  xdg-open "$target"
-  exit 1
-fi
-
 # migrate .qet directory from SNAP_USER_DATA to SNAP_USER_COMMON
 from="$SNAP_USER_DATA/.qet"
 to="$SNAP_USER_COMMON/.qet"

build-aux/snap/snapcraft.yaml

@@ -56,12 +56,6 @@ parts:
     organize:
       '*': bin/
 
-  update-instructions:
-    plugin: dump
-    source: build-aux/snap/local/update-instructions
-    organize: 
-      '*': update-instructions/
-
   qet-tb-generator:
     plugin: python
     source: https://github.com/raulroda/qet_tb_generator-plugin.git
@@ -101,16 +95,14 @@ parts:
     build-packages:
       - git
       - libsqlite3-dev
-    override-pull: |
-      snapcraftctl pull
+    override-build: |
       displayed_version=$(grep "displayedVersion" sources/qet.h | tr -d "\";" | cut -d" " -f5)
-      snap_version="${displayed_version}~$(git rev-parse --short=8 HEAD)"
+      snap_version="${displayed_version}-g$(git rev-parse --short=8 HEAD)"
       modified_displayed_version="${snap_version}.snap"
       sed -i -E "s|const QString displayedVersion =.*|const QString displayedVersion =\"$modified_displayed_version\";|" sources/qet.h
       snapcraftctl set-version "$snap_version"
-    override-build: |
       qmake "$SNAPCRAFT_PART_SRC/qelectrotech.pro"
-      make -j$(nproc)
+      make -j${SNAPCRAFT_PARALLEL_BUILD_COUNT}
       make install INSTALL_ROOT="$SNAPCRAFT_PART_INSTALL"
     override-stage: |
       snapcraftctl stage