handwired/symmetric70_proto use post_rules.mk (#14235)

keyboards/handwired/symmetric70_proto/post_rules.mk

@@ -0,0 +1,2 @@
+KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))local_features.mk
+include $(strip $(KEYBOARD_LOCAL_FEATURES_MK))

keyboards/handwired/symmetric70_proto/promicro/fast/rules.mk

@@ -1,6 +1,3 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_fast/matrix.c
-
-KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
-include $(KEYBOARD_LOCAL_FEATURES_MK)

keyboards/handwired/symmetric70_proto/promicro/normal/rules.mk

@@ -1,6 +1,3 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_debug/matrix.c
-
-KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
-include $(KEYBOARD_LOCAL_FEATURES_MK)

keyboards/handwired/symmetric70_proto/proton_c/fast/rules.mk

@@ -1,6 +1,3 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_fast/matrix.c
-
-KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
-include $(KEYBOARD_LOCAL_FEATURES_MK)

keyboards/handwired/symmetric70_proto/proton_c/normal/rules.mk

@@ -1,6 +1,3 @@
 CUSTOM_MATRIX = yes
 SRC += matrix_common.c
 SRC += matrix_debug/matrix.c
-
-KEYBOARD_LOCAL_FEATURES_MK := $(dir $(lastword $(MAKEFILE_LIST)))../../local_features.mk
-include $(KEYBOARD_LOCAL_FEATURES_MK)