Comment line .PHONY - reference to SONAR which is not used anymore

Makefile

@@ -99,7 +99,7 @@ basic: .npmpackages .virtual_env
 pip-temp-directory:
 	test -d "$(PIP_TMP)" || mkdir -p "$(PIP_TMP)"
 
-.PHONY: nightly maintainer-clean snapshot release git-revision build-dist make-dist-dir dist-copy-extension pip-temp-directory plantuml sonar
+#.PHONY: nightly maintainer-clean snapshot release git-revision build-dist make-dist-dir dist-copy-extension pip-temp-directory plantuml sonar
 
 copyReleaseNotes:
 	cp Documentation/Release.rst extension/RELEASE.txt