Revert "Create MB_MEM2 shared section for devices with shared RAM up to date startup initialize it"

This reverts commit d92c104b80f4c9ae1e0c9337190fd9a7620a0a07.

cmake/stm32/linker_ld.cmake

@@ -25,13 +25,7 @@ else()
     set(RAM_SHARE_SECTION "
 MAPPING_TABLE (NOLOAD) : { *(MAPPING_TABLE) } >RAM_SHARED\n\
 MB_MEM1 (NOLOAD)       : { *(MB_MEM1) } >RAM_SHARED\n\
-_siMB_MEM2 = LOADADDR(.MB_MEM2);\n\
-.MB_MEM2 :\n\
-{\n\
-  _sMB_MEM2 = . ;\n\
-  *(MB_MEM2) ;\n\
-_eMB_MEM2 = . ;\n\
-} >RAM_SHARED AT> FLASH\n\
+MB_MEM2 (NOLOAD)       : { _sMB_MEM2 = . ; *(MB_MEM2) ; _eMB_MEM2 = . ; } >RAM_SHARED\n\
     ")
 endif()