refactor(cpus): remove cpu specific errata funcs

Errata printing is done directly via generic_errata_report.
This commit removes the unused \_cpu\()_errata_report
functions for all cores, and removes errata_func from cpu_ops.

Change-Id: I04fefbde5f0ff63b1f1cd17c864557a14070d68c
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
diff --git a/lib/cpus/aarch64/neoverse_v2.S b/lib/cpus/aarch64/neoverse_v2.S
index 3179918..d8c32a4 100644
--- a/lib/cpus/aarch64/neoverse_v2.S
+++ b/lib/cpus/aarch64/neoverse_v2.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, Arm Limited. All rights reserved.
+ * Copyright (c) 2021-2024, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -116,7 +116,6 @@
 #endif
 cpu_reset_func_end neoverse_v2
 
-errata_report_shim neoverse_v2
 	/* ---------------------------------------------
 	 * This function provides Neoverse V2-
 	 * specific register information for crash