glapi: generate ES dispatch headers from core mesa

GLESv1 and GLESv2 have their own dispatch.h and remap_helper.h.  These
headers are only used by api_exec_es1.c and api_exec_es2.c in core mesa.
Move the rules to generate them from glapi to core mesa.

Reviewed-by: Brian Paul <brianp@vmware.com>

[olv: updated after reviewing to fix SCons build]

src/mapi/es1api/Makefile

@@ -48,7 +48,7 @@ esapi_CPPFLAGS += -DMAPI_MODE_BRIDGE
 esapi_LIB_DEPS := -L$(TOP)/$(LIB_DIR) -l$(GLAPI_LIB) $(esapi_LIB_DEPS)
 
 .PHONY: default
-default: depend $(TOP)/$(LIB_DIR)/$(esapi_LIB_NAME) main/dispatch.h main/remap_helper.h
+default: depend $(TOP)/$(LIB_DIR)/$(esapi_LIB_NAME)
 
 $(TOP)/$(LIB_DIR)/$(esapi_LIB_NAME): $(esapi_OBJECTS)
 	$(MKLIB) -o $(esapi_LIB) -linker '$(CC)' -ldflags '$(LDFLAGS)' \
@@ -72,12 +72,6 @@ include $(GLAPI)/gen/glapi_gen.mk
 glapi_mapi_tmp.h: $(GLAPI)/gen/gl_and_es_API.xml $(glapi_gen_mapi_deps)
 	$(call glapi_gen_mapi,$<,$(ESAPI))
 
-main/dispatch.h: $(GLAPI)/gen/gl_and_es_API.xml $(glapi_gen_dispatch_deps)
-	$(call glapi_gen_dispatch,$<,$(ES))
-
-main/remap_helper.h: $(GLAPI)/gen/gl_and_es_API.xml $(glapi_gen_remap_deps)
-	$(call glapi_gen_remap,$<,$(ES))
-
 .PHONY: clean
 clean:
 	-rm -f $(esapi_PC)
@@ -86,7 +80,6 @@ clean:
 	-rm -f $(esapi_OBJECTS)
 	-rm -f depend depend.bak
 	-rm -f glapi_mapi_tmp.h
-	-rm -rf main
 
 pcedit = \
 	-e 's,@INSTALL_DIR@,$(INSTALL_DIR),' \