Cleaned old dependencies

ldscripts/flash.ld

ldscripts/libs.ld

ldscripts/mem.ld

ldscripts/stm32f4_flash.ld

startup/startup_stm32f4.c

system/include/arm/semihosting.h

system/include/cmsis/arm_common_tables.h

system/include/cmsis/arm_const_structs.h

system/include/cmsis/arm_math.h

system/include/cmsis/cmsis_armcc.h

system/include/cmsis/cmsis_armcc_V6.h

system/include/cmsis/cmsis_armclang.h

system/include/cmsis/cmsis_compiler.h

system/include/cmsis/cmsis_device.h

system/include/cmsis/cmsis_gcc.h

system/include/cmsis/core_armv8mbl.h

system/include/cmsis/core_armv8mml.h

system/include/cmsis/core_cm0.h

system/include/cmsis/core_cm0plus.h

system/include/cmsis/core_cm23.h