Remove grub_dl_unload_all. It's unnecessary and causes trouble

grub-core/kern/dl.c

@@ -682,20 +682,3 @@ grub_dl_unload_unneeded (void)
       p = p->next;
     }
 }
-
-/* Unload all modules.  */
-void
-grub_dl_unload_all (void)
-{
-  while (grub_dl_head)
-    {
-      grub_dl_t p;
-
-      grub_dl_unload_unneeded ();
-
-      /* Force to decrement the ref count. This will purge pre-loaded
-	 modules and manually inserted modules.  */
-      for (p = grub_dl_head; p; p = p->next)
-	p->ref_count--;
-    }
-}

grub-core/kern/i386/pc/startup.S

@@ -546,8 +546,6 @@ FUNCTION(grub_chainloader_real_boot)
 	pushl	%edx
 	pushl	%eax
 
-	call	EXT_C(grub_dl_unload_all)
-
 	/* Turn off Gate A20 */
 	xorl	%eax, %eax
 	call	EXT_C(grub_gate_a20)