Remove the check for "Signed-of-by" at PR

.travis.yml

@@ -60,8 +60,6 @@ addons:
       - yasm
 
 before_install:
-  - "export TRAVIS_COMMIT_MSG=\"$(git log --format=%B --no-merges -n 1)\""
-  - .travis/check.sh
   - export CXX="g++-6" CC="gcc-6"
   - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-6 60 --slave /usr/bin/g++ g++ /usr/bin/g++-6
   - sudo update-alternatives --config gcc

.travis/check.sh

@@ -1,57 +0,0 @@
-#!/bin/bash
-# Checks commit message, ...
-
-run() {
-	checkCommitMessage
-}
-
-checkCommitMessage() {
-	info_msg "Commit message: ${TRAVIS_COMMIT_MSG}";
-	info_msg "Is pull request: ${TRAVIS_PULL_REQUEST}";
-
-	if [[ $TRAVIS_PULL_REQUEST != "false" ]];then
-		if [[  $TRAVIS_COMMIT_MSG != *"Signed-off-by: "* ]];then
-			error_msg "The commit message does not contain the signature!"
-			error_msg "More information: https://github.com/telegramdesktop/tdesktop/blob/master/.github/CONTRIBUTING.md#sign-your-work"
-			addMissingSignatureInfos
-			exit 1
-		else
-			success_msg "Commit message contains signature"
-		fi
-	fi
-}
-
-addMissingSignatureInfos() {
-	if [[ $BUILD_VERSION == "" ]]; then
-		local TEXT="Hi,\n\
-thanks for the pull request!\n\
-\n\
-Please read our [contributing policy](https://github.com/telegramdesktop/tdesktop/blob/master/.github/CONTRIBUTING.md). You'll need to make a pull request with the \\\"Signed-off-by:\\\" signature being the last line of your commit message, like it is described in [sign your work](https://github.com/telegramdesktop/tdesktop/blob/master/.github/CONTRIBUTING.md#sign-your-work) section. That will grant your work into the public domain.\n\
-\n\
-(See [travis build](https://travis-ci.org/telegramdesktop/tdesktop/jobs/${TRAVIS_JOB_ID}))"
-		addCommentToGitHub "${TEXT}"
-		addLabelToGitHub "missing signature"
-		info_msg "Added missing signature info on github"
-	fi
-}
-
-addCommentToGitHub() {
-	local BODY=$1
-	sendGitHubRequest "POST" "{\"body\": \"${BODY}\"}" "repos/${TRAVIS_REPO_SLUG}/issues/${TRAVIS_PULL_REQUEST}/comments"
-}
-
-addLabelToGitHub() {
-	local LABEL=$1
-	sendGitHubRequest "PATCH" "{\"labels\": [\"${LABEL}\"]}" "repos/${TRAVIS_REPO_SLUG}/issues/${TRAVIS_PULL_REQUEST}"
-}
-
-sendGitHubRequest() {
-	local METHOD=$1
-	local BODY=$2
-	local URI=$3
-	curl -H "Authorization: token ${GH_AUTH_TOKEN}" --request "${METHOD}" --data "${BODY}" --silent "https://api.github.com/${URI}" > /dev/null
-}
-
-source ./.travis/common.sh
-
-run