Remove redundant Makefile.

keyboards/planck/keymaps/dshields/Makefile

@@ -1,13 +0,0 @@
-ifndef QUANTUM_DIR
-	include ../../../../Makefile
-endif
-
-MOUSEKEY_ENABLE  = yes # Mouse keys(+4700)
-COMMAND_ENABLE   = yes # Commands for debug and configuration
-CONSOLE_ENABLE   = yes # Console for debug(+400)
-BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
-# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
-SLEEP_LED_ENABLE = no  # Breathing sleep LED during USB suspend
-TAP_DANCE_ENABLE = yes 
-AUDIO_ENABLE     = no
-API_SYSEX_ENABLE = no