Cleanup rules.mk for 32U4 keyboards, A-F (#6804)

* Cleanup rules.mk for 32U4 keyboards, A-F

* Put back stuff in VIA keymaps

keyboards/dp60/keymaps/via/rules.mk

@@ -11,7 +11,6 @@ OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
 #   LUFA bootloader  4096
 #   USBaspLoader     2048
 BOOTLOADER = atmel-dfu
-#OPT_DEFS += -DBOOTLOADER_SIZE=4096
 
 # Do not put the microcontroller into power saving mode
 # when we get USB suspend event. We want it to keep updating
@@ -45,4 +44,4 @@ DYNAMIC_KEYMAP_ENABLE = yes
 
 CUSTOM_MATRIX = yes
 SRC += matrix.c keyboards/wilba_tech/wt_main.c
-#keyboards/stm60/webusb.c
+#keyboards/stm60/webusb.c