memory.x: remove comment about old cortex-m-rt

memory.x

@@ -37,10 +37,7 @@ SECTIONS {
     __eitcm = .;
   } > ITCM AT>FLASH
   __siitcm = LOADADDR(.itcm);
-
-/* This may be the only insert location that doesn't affect those __[es]...
- * that are (unfortunately) placed outside their sections */
-} INSERT BEFORE .uninit;
+} INSERT AFTER .uninit;
 
 ASSERT(__sitcm % 8 == 0 && __eitcm % 8 == 0, "
 BUG(cortex-m-rt): .itcm is not 8-byte aligned");