[actions] remove qt build

Signed-off-by: R4SAS <r4sas@i2pmail.org>

.github/workflows/build.yml

@@ -19,19 +19,3 @@ jobs:
         sudo apt-get install build-essential libboost1.74-dev libminiupnpc-dev libssl-dev zlib1g-dev
     - name: build application
       run: make USE_UPNP=${{ matrix.with_upnp }} -j3
-
-  build_qt:
-    name: With QT GUI
-    runs-on: ubuntu-16.04
-    steps:
-    - uses: actions/checkout@v2
-    - name: install packages
-      run: |
-        sudo add-apt-repository ppa:mhier/libboost-latest
-        sudo apt-get update
-        sudo apt-get install build-essential qt5-default libqt5gui5 libboost1.74-dev libminiupnpc-dev libssl-dev zlib1g-dev
-    - name: build application
-      run: |
-        cd qt/i2pd_qt
-        qmake
-        make -j3