build: remove duplicate helm include

The build had a duplicate helm include file, which was causing
build warnings to be spewed for commands already being set.

Signed-off-by: Travis Nielsen <tnielsen@redhat.com>

Makefile

@@ -97,9 +97,6 @@ GO_TEST_FILTER=$(TESTFILTER)
 
 include build/makelib/golang.mk
 
-# setup helm charts
-include build/makelib/helm.mk
-
 # ====================================================================================
 # Targets