7021314: Build should not install javaws man page

Summary: Only install javaws.1 when not building OpenJDK
Reviewed-by: alanb, ohair

jdk/make/common/Release.gmk

@@ -124,9 +124,11 @@ JRE_MAN_PAGES =         \
 	tnameserv.1     \
 	unpack200.1
 
+ifndef OPENJDK
 ifeq ($(ARCH_DATA_MODEL),32)
   JRE_MAN_PAGES += javaws.1
 endif
+endif
 
 JDK_MAN_PAGES =            \
 	$(JRE_MAN_PAGES)   \