githooks/pre-commit: remove file size check

This still comes from the aports hook, where we want to avoid too large patches,
but in pmaports we have big kernel config files that might exceed the
configured 256 kiB limit.

Currently the following files exceed that limit and used git commit
--no-verify to overcome the error (or didn't configure git hooks):

	260K	./device/community/linux-postmarketos-qcom-laptop/config-postmarketos-qcom-laptop.aarch64
	268K	./main/postmarketos-bootsplash/OpenSans-Regular.svg
	336K	./device/downstream/linux-amazon-checkers/0003-Add-missing-kconfig-files.patch
	376K	./device/downstream/linux-amazon-austin/silence-power-logspam.patch

Alternatively we can increase the file limit, but i'm not sure what that
solves.

In future for Alpine, I want to move the check to abuild's internal
linting, which makes it visible for all APKBUILDs, consistent with
other of abuild's linters and also shows up on CI.

Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7603>

.githooks/pre-commit

@@ -5,10 +5,6 @@
 #
 set -eu
 
-# Maximal allowed size (in bytes) of a file.
-FILE_SIZE_LIMIT=262144  # 256 kiB
-
-
 if ! command -v sha512sum >/dev/null; then
 	# macOS / BSDs (?) don't have sha512sum, but shasum.
 	alias sha512sum='shasum -a 512'
@@ -95,20 +91,6 @@ check_local_sources() {
 	return $status
 }
 
-# Checks if the file ($1) being committed is not bigger than FILE_SIZE_LIMIT.
-check_file_size() {
-	local path="$1"
-	local size
-
-	size=$(git cat-file -s ":$path")
-	if [ $size -gt $FILE_SIZE_LIMIT ]; then
-		local size_kb=$(( size / 1024 ))
-
-		error "file \"$path\" is quite big ($(( size / 1024 )) kiB), better put a remote url in source="
-		return 1
-	fi
-}
-
 cleanup() {
   [ -f "$_staged" ] && rm "$_staged"
 }
@@ -122,8 +104,4 @@ for apkbuild in $(changed_files '**/APKBUILD'); do
 	cleanup
 done
 
-for path in $(changed_files); do
-	check_file_size "$path"
-done
-
 trap - EXIT