8008295: build-infra: Cleanup in Import.gmk

Reviewed-by: ohrstrom, tbell

makefiles/Import.gmk

@@ -100,33 +100,13 @@ IMPORT_TARGET_FILES += $(IMPORT_TARGET_CLASSES) $(IMPORT_TARGET_SOURCES) $(IMPOR
 
 #######
 
-ifeq ($(OPENJDK_TARGET_OS),solaris)
-define do-install-file
-	$(MKDIR) -p '$$(@D)'
-	$(RM) '$$@'
-	$(CP) -r -P '$$<' '$$(@D)'
-endef
-else ifeq ($(OPENJDK_TARGET_OS),macosx)
-define do-install-file
-	$(MKDIR) -p '$$(@D)'
-	$(RM) '$$@'
-	$(CP) -pRP '$$<' '$$@'
-endef
-else
-define do-install-file
-	$(MKDIR) -p '$$(@D)'
-	$(RM) '$$@'
-	$(CP) -P '$$<' '$$@'
-endef
-endif
-
 define CopyDir
         $1_SRC_FILES := $(shell $(FIND) $2 -type f -a \( -name DUMMY $(addprefix -o$(SPACE)-name$(SPACE),$4) \))
         $1_DST_FILES := $$(patsubst $2/%,$3/%,$$($1_SRC_FILES))
         IMPORT_TARGET_FILES += $$($1_DST_FILES)
 $3/% : $2/%
 	$(ECHO) $(LOG_INFO) Copying $$(@F)
-	$(do-install-file)
+	$$(install-file)
 endef
 
 #######
@@ -197,26 +177,4 @@ $(INSTALL_LIBRARIES_HERE)/client/%.diz : $(INSTALL_LIBRARIES_HERE)/%.diz
 
 #######
 
-ifeq ($(OPENJDK_TARGET_OS),solaris)
-define install-file
-	$(MKDIR) -p '$(@D)'
-	$(RM) '$@'
-	$(CP) -r -P '$<' '$(@D)'
-endef
-else ifeq ($(OPENJDK_TARGET_OS),macosx)
-define install-file
-	$(MKDIR) -p '$(@D)'
-	$(RM) '$@'
-	$(CP) -pRP '$<' '$@'
-endef
-else
-define install-file
-	$(MKDIR) -p '$(@D)'
-	$(RM) '$@'
-	$(CP) -P '$<' '$@'
-endef
-endif
-
-#######
-
 all: $(IMPORT_TARGET_FILES)