wrappers: Skip the clang-scan-deps wrapper script on Unix

The wrapper script no longer has any purpose on Unix.

Just do a plain symlink to the clang-scan-deps tool.

On Windows, the wrapper executable still is used to inject a
default -target option, if the executable name doesn't contain
a triple.

wrappers/clang-scan-deps-wrapper.sh

@@ -1,65 +0,0 @@
-#!/bin/bash
-#
-# Copyright (c) 2024 Martin Storsjo
-#
-# Permission to use, copy, modify, and/or distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notice and this permission notice appear in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-get_dir() {
-    target="$1"
-    while [ -L "$target" ]; do
-        cd "$(dirname "$target")"
-        target="$(readlink "$(basename "$target")")"
-    done
-    cd "$(dirname "$target")"
-    pwd
-}
-
-DIR="$(get_dir "$0")"
-
-# If changing this wrapper, change clang-scan-deps-wrapper.c accordingly.
-EXE="$DIR/clang-scan-deps"
-FLAGS=()
-while [ $# -gt 0 ]; do
-    if [ -n "$got_flags" ]; then
-        CMD_EXE="$1"
-        FLAGS+=("$1")
-        shift
-        break
-    elif [ "$1" = "--" ]; then
-        got_flags=1
-        FLAGS+=("$1")
-    else
-        FLAGS+=("$1")
-    fi
-    shift
-done
-
-if [ -n "$CMD_EXE" ]; then
-    CMD_BASENAME="$(basename "$CMD_EXE")"
-    CMD_BASENAME="${CMD_BASENAME%.*}"
-    CMD_TARGET="${CMD_BASENAME%-*}"
-    CMD_EXE_SUFFIX="${CMD_BASENAME##*-}"
-    if [ "$CMD_TARGET" != "$CMD_BASENAME" ]; then
-        case $CMD_EXE_SUFFIX in
-        clang|clang++|gcc|g++|c++|as|cc|c99|c11)
-            IS_CLANG=1
-            ;;
-        esac
-    fi
-fi
-
-if [ -n "$IS_CLANG" ]; then
-    "$EXE" "${FLAGS[@]}" "$@"
-else
-    "$EXE" "${FLAGS[@]}" "$@"
-fi