feat(zynqmp): remove unused pm_get_proc_by_node()

The pm_get_proc_by_node() is not used anywhere. Hence remove the
same.

Change-Id: Ifd68dd524cae0a9f1684d943019563027859ccea
Signed-off-by: Ronak Jain <ronak.jain@amd.com>
diff --git a/plat/xilinx/zynqmp/pm_service/pm_client.c b/plat/xilinx/zynqmp/pm_service/pm_client.c
index 4afa01d..9d0e2c4 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_client.c
+++ b/plat/xilinx/zynqmp/pm_service/pm_client.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2013-2018, Arm Limited and Contributors. All rights reserved.
- * Copyright (c) 2022-2023, Advanced Micro Devices, Inc. All rights reserved.
+ * Copyright (c) 2022-2024, Advanced Micro Devices, Inc. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -245,23 +245,6 @@
 }
 
 /**
- * pm_get_proc_by_node() - returns pointer to the proc structure.
- * @nid: node id of the processor.
- *
- * Return: pointer to a proc structure if proc is found, otherwise NULL.
- *
- */
-const struct pm_proc *pm_get_proc_by_node(enum pm_node_id nid)
-{
-	for (size_t i = 0; i < ARRAY_SIZE(pm_procs_all); i++) {
-		if (nid == pm_procs_all[i].node_id) {
-			return &pm_procs_all[i];
-		}
-	}
-	return NULL;
-}
-
-/**
  * pm_get_cpuid() - get the local cpu ID for a global node ID.
  * @nid: node id of the processor.
  *