contrib/jenkins: don't build osmo-gsm-manuals

Related: OS#4912
Change-Id: Ibacb11da37acfd324cee37068099627136717781
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
index 7b751ad..3cf12c6 100755
--- a/contrib/jenkins.sh
+++ b/contrib/jenkins.sh
@@ -89,7 +89,6 @@
 
 # Additional configure options and depends
 if [ "$WITH_MANUALS" = "1" ]; then
-	osmo-build-dep.sh osmo-gsm-manuals
 	CONFIG="$CONFIG --enable-manuals"
 fi