refactor(tegra132): deprecate platform

The Tegra132 platforms have reached their end of life and are
no longer used in the field. Internally and externally, all
known programs have removed support for this legacy platform.

This change removes this platform from the Tegra tree as a result.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I72edb689293e23b63290cdcaef60468b90687a5a
diff --git a/plat/nvidia/tegra/include/tegra_platform.h b/plat/nvidia/tegra/include/tegra_platform.h
index b8297fd..ab51dfe 100644
--- a/plat/nvidia/tegra/include/tegra_platform.h
+++ b/plat/nvidia/tegra/include/tegra_platform.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
- * Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2020-2021, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -49,7 +49,6 @@
 /*
  * Tegra chip ID identifiers
  */
-bool tegra_chipid_is_t132(void);
 bool tegra_chipid_is_t186(void);
 bool tegra_chipid_is_t210(void);
 bool tegra_chipid_is_t210_b01(void);