Remove fed 35 from test suite

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

.github/workflows/test.yml

@@ -55,7 +55,6 @@ jobs:
             ubuntu_22,
             centos_8,
             centos_9,
-            fedora_35,
             fedora_36,
             fedora_37,
           ]

test/_fedora_35.Dockerfile

@@ -1,18 +0,0 @@
-FROM fedora:35
-RUN dnf install -y git initscripts
-
-ENV GITDIR /etc/.pihole
-ENV SCRIPTDIR /opt/pihole
-
-RUN mkdir -p $GITDIR $SCRIPTDIR /etc/pihole
-ADD . $GITDIR
-RUN cp $GITDIR/advanced/Scripts/*.sh $GITDIR/gravity.sh $GITDIR/pihole $GITDIR/automated\ install/*.sh $SCRIPTDIR/
-ENV PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$SCRIPTDIR
-
-RUN true && \
-    chmod +x $SCRIPTDIR/*
-
-ENV SKIP_INSTALL true
-ENV OS_CHECK_DOMAIN_NAME dev-supportedos.pi-hole.net
-
-#sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \