Remove duplicate test keyboards (#6539)

* Remove test keyboards now onekey and splittest have been extended

* Add f072 for testing

keyboards/handwired/onekey/stm32f0_disco/rules.mk

@@ -0,0 +1,34 @@
+## chip/board settings
+# the next two should match the directories in
+#  <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+MCU_FAMILY = STM32
+MCU_SERIES = STM32F0xx
+# linker script to use
+# it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+#  or <this_dir>/ld/
+MCU_LDSCRIPT = STM32F072xB
+# startup code to use
+# is should exist in <chibios>/os/common/ports/ARMCMx/compilers/GCC/mk/
+MCU_STARTUP = stm32f0xx
+# it should exist either in <chibios>/os/hal/boards/
+#  or <this_dir>/boards
+BOARD = ST_STM32F072B_DISCOVERY
+# Cortex version
+# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4
+MCU  = cortex-m0
+# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+ARMV = 6
+# If you want to be able to jump to bootloader from firmware on STM32 MCUs,
+# set the correct BOOTLOADER_ADDRESS. Either set it here, or define it in
+# ./bootloader_defs.h or in ./boards/<FOO>/bootloader_defs.h (if you have
+# a custom board definition that you plan to reuse).
+# If you're not setting it here, leave it commented out.
+# It is chip dependent, the correct number can be looked up here (page 175):
+# http://www.st.com/web/en/resource/technical/document/application_note/CD00167594.pdf
+# This also requires a patch to chibios:
+#   <tmk_dir>/tmk_core/tool/chibios/ch-bootloader-jump.patch
+#STM32_BOOTLOADER_ADDRESS = 0x1FFFC800
+
+# Options to pass to dfu-util when flashing
+DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave
+DFU_SUFFIX_ARGS = -p df11 -v 0483