docs: Remove deprecated information

There are no references to AARCH32, AARCH64 and
__ASSEMBLY__ macros in the TF-A code hence
removed the deprecated information mentioning about
these macros in the document.

Change-Id: I472ab985ca2e4173bae23ff7b4465a9b60bc82eb
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

docs/about/release-information.rst

@@ -59,9 +59,7 @@ Release version after which it will be removed.
 |                                | Date        | after   |                                                         |
 |                                |             | Release |                                                         |
 +================================+=============+=========+=========================================================+
-| ``AARCH32``/``AARCH64`` macros | Oct '19     | v2.3    | Deprecated in favor of ``__aarch64__``                  |
-+--------------------------------+-------------+---------+---------------------------------------------------------+
-| ``__ASSEMBLY__`` macro         | Oct '19     | v2.3    | Deprecated in favor of ``__ASSEMBLER__``                |
+|                                |             |         |                                                         |
 +--------------------------------+-------------+---------+---------------------------------------------------------+
 
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