remove fedora package support (#3752)

.ci/Fedora29/Dockerfile

@@ -1,19 +0,0 @@
-FROM fedora:29
-
-RUN dnf install -y \
-        @development-tools \
-        ccache \
-        cmake \
-        desktop-file-utils \
-        file \
-        gcc-c++ \
-        hicolor-icon-theme \
-        libappstream-glib \
-        protobuf-devel \
-        qt5-{qttools,qtsvg,qtmultimedia,qtwebsockets}-devel-5.11.1-2.fc29 \
-        rpm-build \
-        sqlite-devel \
-        wget \
-        zlib-devel \
-        xz-devel \
-    && dnf clean all

.travis.yml

@@ -6,6 +6,7 @@ git:
 
 matrix:
   include:
+
   #Ubuntu Xenial (Debug only)
   - name: Ubuntu Xenial (Debug)
     if: tag IS NOT present
@@ -29,6 +30,7 @@ matrix:
         - libqt5websockets5-dev
     script: bash ./.ci/travis-compile.sh --format --server --test --debug
 
+
   #Ubuntu Bionic (on docker)
   - name: Ubuntu Bionic (Debug)
     if: tag IS NOT present
@@ -56,32 +58,6 @@ matrix:
           "cockatrice_${NAME,,}"
           bash .ci/travis-compile.sh --server --package "$NAME" --release
 
-  #Fedora 29 (on docker)
-  - name: Fedora 29 (Debug)
-    if: tag IS NOT present
-    services: docker
-    env: NAME=Fedora29
-    cache:
-      directories:
-      - $HOME/$NAME/
-    before_install: docker build -t "cockatrice_${NAME,,}" .ci/$NAME && mkdir -p $HOME/$NAME/.ccache
-    script: docker run --mount "type=bind,source=$(pwd),target=/src" -w="/src"
-          --mount "type=bind,source=$HOME/$NAME/.ccache,target=/.ccache" -e "CCACHE_DIR=/.ccache"
-          "cockatrice_${NAME,,}"
-          bash .ci/travis-compile.sh --server --debug
-
-  - name: Fedora 29 (Release)
-    if: (branch = master AND NOT type = pull_request) OR tag IS present
-    services: docker
-    env: NAME=Fedora29
-    cache:
-      directories:
-      - $HOME/$NAME/
-    before_install: docker build -t "cockatrice_${NAME,,}" .ci/$NAME && mkdir -p $HOME/$NAME/.ccache
-    script: docker run --mount "type=bind,source=$(pwd),target=/src" -w="/src"
-          --mount "type=bind,source=$HOME/$NAME/.ccache,target=/.ccache" -e "CCACHE_DIR=/.ccache"
-          "cockatrice_${NAME,,}"
-          bash .ci/travis-compile.sh --server --package "$NAME" "RPM" --release
 
   #macOS
   - name: macOS (Debug)
@@ -104,7 +80,6 @@ matrix:
     before_cache:
     - brew cleanup
 
-
   - name: macOS (Release)
     if: (branch = master AND NOT type = pull_request) OR tag IS present
     os: osx