STM32WB cleanup

- BLE feature is mandatory
- remove clock source selection
- license alignment
- startup file from Cube delivery
- linker script alignement

Author: jeromecoutant

targets/TARGET_STM/TARGET_STM32WB/STM32Cube_FW/STM32_WPAN/stm32_wpan_common.h

@@ -26,20 +26,6 @@
 extern "C" {
 #endif
 
-#if   defined ( __CC_ARM )
- #define __ASM            __asm                                      /*!< asm keyword for ARM Compiler          */
- #define __INLINE         __inline                                   /*!< inline keyword for ARM Compiler       */
- #define __STATIC_INLINE  static __inline
-#elif defined ( __ICCARM__ )
- #define __ASM            __asm                                      /*!< asm keyword for IAR Compiler          */
- #define __INLINE         inline                                     /*!< inline keyword for IAR Compiler. Only available in High optimization mode! */
- #define __STATIC_INLINE  static inline
-#elif defined ( __GNUC__ )
- #define __ASM            __asm                                      /*!< asm keyword for GNU Compiler          */
- #define __INLINE         inline                                     /*!< inline keyword for GNU Compiler       */
- #define __STATIC_INLINE  static inline
-#endif
-
 #include <stdint.h>
 #include <string.h>
 #include <stdio.h>