CI: remove redundant C linter check (!694)

.gitlab-ci.yml

@@ -40,15 +40,6 @@ py-sh-static:
   script:
     - .gitlab-ci/static_code_analysis.sh
 
-# coding style check
-clang-format-static:
-  stage: first
-  <<: *only-default
-  before_script:
-    - apk -q add clang git
-  script:
-    - .gitlab-ci/static_clang-format.sh
-
 # aports checks (generic)
 aports-static:
   stage: first

.gitlab-ci/static_clang-format.sh

@@ -1,22 +0,0 @@
-#!/bin/sh
-
-set -e
-
-clang-format -i $(find . -name "*.c")
-
-git diff > differences.patch
-
-if [ -s differences.patch ]; then
-    echo "C-Code formatting check failed!"
-    echo "Please make sure, the code is formatted properly!"
-    echo "Run:"
-    echo '    clang-format -i $(find . -name "*.c")'
-    echo
-    cat differences.patch
-    echo
-    rm differences.patch
-    exit 1
-else
-    echo "C-Code formatting check is sucessful!"
-    exit 0
-fi