Do not ship python2-only call-graph-from-sql.

debian/changelog

@@ -18,6 +18,7 @@ linux (4.19.5-1~exp2) UNRELEASED; urgency=medium
   * debian/rules.real: Split the rules so that the [un]versioned_tools
     knobs can be used to avoid building them. Fixes FTBFS with unversioned
     tools disabled.
+  * perf: do not ship python2-only call-graph-from-sql script.
 
  -- Uwe Kleine-König <ukleinek@debian.org>  Wed, 28 Nov 2018 12:20:46 +0100
 

debian/rules.real

@@ -686,6 +686,8 @@ install-perf: build-perf
 	dh_testroot
 	dh_prep
 	$(call make-tools,tools/perf) install DESTDIR=$(DIR)
+	# do not ship python2 script
+	rm -f $(DIR)/usr/lib/perf_$(VERSION)-core/scripts/python/call-graph-from-sql.py
 	dh_perl /usr/lib/perf_$(VERSION)-core/scripts/perl/Perf-Trace-Util/lib/
 	dh_python3 /usr/lib/perf_$(VERSION)-core/scripts/python/Perf-Trace-Util/lib/
 	dh_installchangelogs