Revert "Changes necessary to support SEPARATE_NOBITS_REGION feature"

This reverts commit 76d84cbc60ab3ee7bf40d53487f85ed7417bdcc3.

Change-Id: I867af7af3d9f5e568101f79b9ebea578e5cb2a4b
diff --git a/bl31/bl31.ld.S b/bl31/bl31.ld.S
index 86fe236..42227f0 100644
--- a/bl31/bl31.ld.S
+++ b/bl31/bl31.ld.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -208,7 +208,6 @@
      * Define a linker symbol to mark end of the RW memory area for this
      * image.
      */
-    . = ALIGN(PAGE_SIZE);
     __RW_END__ = .;
     __BL31_END__ = .;