[CI][BugFix] ShellCheck cleanup to remove baseline and preserve runtime behavior (#34514)

Signed-off-by: junuxyz <216036880+junuxyz@users.noreply.github.com>

tools/pre_commit/shellcheck.sh

@@ -2,7 +2,6 @@
 set -euo pipefail
 
 scversion="stable"
-baseline="tools/pre_commit/shellcheck.baseline"
 
 if [ -d "shellcheck-${scversion}" ]; then
     export PATH="$PATH:$(pwd)/shellcheck-${scversion}"
@@ -20,38 +19,6 @@ if ! [ -x "$(command -v shellcheck)" ]; then
 fi
 
 # TODO - fix warnings in .buildkite/scripts/hardware_ci/run-amd-test.sh
-# collects warnings as "file:SCcode" pairs for baseline comparison.
-collect() {
-  find . -path ./.git -prune -o -name "*.sh" \
-    -not -path "./.buildkite/scripts/hardware_ci/run-amd-test.sh" -print0 | \
-    xargs -0 sh -c 'for f in "$@"; do git check-ignore -q "$f" || shellcheck -s bash -f gcc "$f" || true; done' -- | \
-    sed -nE 's|^\./||; s|^([^:]+):[0-9]+:[0-9]+:.*\[(SC[0-9]+)\]$|\1:\2|p' | \
-    sort -u
-}
-
-if [[ "${1:-}" == "--generate-baseline" ]]; then
-  collect > "$baseline"
-  echo "Wrote baseline to $baseline"
-  exit 0
-fi
-
-if [[ ! -f "$baseline" ]]; then
-  echo "Baseline not found: $baseline (run: $0 --generate-baseline)"
-  exit 1
-fi
-
-current="$(mktemp)"
-trap 'rm -f "$current"' EXIT
-collect > "$current"
-
-# finds new warnings not in baseline
-new_errors="$(comm -23 "$current" <(sort -u "$baseline") || true)"
-if [ -n "$new_errors" ]; then
-  echo "$new_errors" | cut -d: -f1 | sort -u | while IFS= read -r file; do
-    if [[ -f "$file" ]]; then
-      codes=$(echo "$new_errors" | awk -F: -v f="$file" '$1==f {print $2}' | paste -sd ',' -)
-      shellcheck -s bash --include="$codes" "$file" 2>&1 || true
-    fi
-  done
-  exit 1
-fi
+find . -path ./.git -prune -o -name "*.sh" \
+  -not -path "./.buildkite/scripts/hardware_ci/run-amd-test.sh" -print0 | \
+  xargs -0 sh -c "for f in \"\$@\"; do git check-ignore -q \"\$f\" || shellcheck -s bash \"\$f\"; done" --