ci: install gcovr via apt

Change-Id: I0e24a2299c99d4e685a9bb5a1ddba34d06ba2f77
refs: #4771
diff --git a/.jenkins.d/00-deps.sh b/.jenkins.d/00-deps.sh
index e0a4194..d7bd1e6 100755
--- a/.jenkins.d/00-deps.sh
+++ b/.jenkins.d/00-deps.sh
@@ -28,7 +28,6 @@
                              libsqlite3-dev libssl-dev
 
     if [[ $JOB_NAME == *"code-coverage" ]]; then
-        sudo apt-get -qy install lcov libgd-perl python-setuptools
-        sudo easy_install --upgrade gcovr
+        sudo apt-get -qy install gcovr lcov libgd-perl
     fi
 fi