Drop Fedora 29.

tests/dockerfiles/Dockerfile.fedora-29-base

@@ -1,36 +0,0 @@
-FROM fedora:29
-
-RUN dnf update -y -q \
-  && dnf -y -q install \
-  audacious-devel \
-  cairo-devel \
-  cmake \
-  dbus-glib-devel \
-  docbook2X \
-  freetype-devel \
-  git \
-  imlib2-devel \
-  lcov \
-  libcurl-devel \
-  libical-devel \
-  libircclient-devel \
-  libmicrohttpd-devel \
-  librsvg2-devel \
-  libX11-devel \
-  libXdamage-devel \
-  libXext-devel \
-  libXft-devel \
-  libXinerama-devel \
-  libxml2-devel \
-  libXNVCtrl-devel \
-  lua-devel \
-  make \
-  man \
-  mysql-devel \
-  ncurses-devel \
-  openssl-devel \
-  patch \
-  pulseaudio-libs-devel \
-  readline-devel \
-  systemd-devel \
-  xmms2-devel

tests/dockerfiles/Dockerfile.fedora-29-clang-7

@@ -1,15 +0,0 @@
-ARG IMAGE=registry.gitlab.com/brndnmtthws-oss/conky
-FROM ${IMAGE}/builder/fedora-29-base:latest
-
-RUN dnf -y -q install \
-    llvm \
-    clang \
-    libcxx-devel \
-    libcxxabi-devel \
-    && curl -Ls https://rpm.nodesource.com/setup_11.x -o npm.sh \
-    && bash npm.sh \
-    && rm npm.sh \
-    && dnf -y -q install npm \
-    && dnf clean all \
-    && npm install -g lcov-summary \
-    && npm cache clean --force

tests/dockerfiles/Dockerfile.fedora-29-gcc-8

@@ -1,7 +0,0 @@
-ARG IMAGE=registry.gitlab.com/brndnmtthws-oss/conky
-FROM ${IMAGE}/builder/fedora-29-base:latest
-
-RUN dnf -qy install \
-    gcc \
-    gcc-c++ \
-    && dnf clean all