pbio/platform/ev3/platform.ld: drop .startcode section

This source file for startup.o is empty, so this does nothing. Also, in
this script, we use ENTRY() to determine the entry point, so we don't
need to do anything special for the first section in RAM.

Author: dlech

lib/pbio/platform/ev3/platform.ld

@@ -15,12 +15,6 @@ pbdrv_stack_end = ORIGIN(DDR) + LENGTH(DDR) - 4;
 
 SECTIONS
 {
-    .startcode :
-    {
-        . = ALIGN(4);
-        *startup.o (.text)
-    } > DDR
-
     .text :
     {
         . = ALIGN(4);