ci: disable frames in lcov HTML coverage report

Change-Id: Ie7ecce199aefc37b95d721f1032ac69ebe3f8338
diff --git a/.jenkins.d/00-deps.sh b/.jenkins.d/00-deps.sh
index 14e41a4..8d98130 100755
--- a/.jenkins.d/00-deps.sh
+++ b/.jenkins.d/00-deps.sh
@@ -30,7 +30,7 @@
                              libpcap-dev
 
     if [[ $JOB_NAME == *"code-coverage" ]]; then
-        sudo apt-get -qy install gcovr lcov libgd-perl
+        sudo apt-get -qy install gcovr lcov
     fi
 
 elif has CentOS-8 $NODE_LABELS; then