COMPMID-1995: Fix clang-tidy warnings

- Remove VirtualCall checks
- Fix some unused variables errors
- Use std::array insted of C style arrays
- Various fixes

Change-Id: Ife6170b7102de42b8f04e298dcf8476bf90779f0
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1049
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
diff --git a/src/core/NEON/kernels/NEGEMMLowpQuantizeDownInt32ToUint8ScaleKernel.cpp b/src/core/NEON/kernels/NEGEMMLowpQuantizeDownInt32ToUint8ScaleKernel.cpp
index 573373f..a221bd7 100644
--- a/src/core/NEON/kernels/NEGEMMLowpQuantizeDownInt32ToUint8ScaleKernel.cpp
+++ b/src/core/NEON/kernels/NEGEMMLowpQuantizeDownInt32ToUint8ScaleKernel.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -183,7 +183,7 @@
         win_biases.set(Window::DimY, Window::Dimension(0, 1, 1));
 
         Iterator bias(_bias, win_biases);
-        execute_window_loop(win, [&](const Coordinates & id)
+        execute_window_loop(win, [&](const Coordinates &)
         {
             // Compute 16 elements per iteration
             int x = window_start_x;
@@ -245,7 +245,7 @@
     }
     else
     {
-        execute_window_loop(win, [&](const Coordinates & id)
+        execute_window_loop(win, [&](const Coordinates &)
         {
             // Compute 16 elements per iteration
             int x = window_start_x;