travis: remove downstream trigger (refs #3366)

(cherry picked from commit a6057af11f)

.travis.yml

@@ -37,7 +37,6 @@ matrix:
           CC="clang-3.9"
           LINKFLAGS="-fuse-ld=gold-2.26"
           ENABLE_GLIBC_WORKAROUND=true
-          TRIGGER=true
       addons:
         postgresql: "9.4"
         apt:
@@ -107,6 +106,3 @@ script:
  - test_ok && enabled ${COVERAGE} coverage
  - test_ok && enabled ${BENCH} make bench
  - ./scripts/check_glibcxx.sh
-
-after_success:
- - enabled ${TRIGGER} trigger_downstream

scripts/travis-common.sh

@@ -100,21 +100,3 @@ coverage () {
         -g "./test/**" \
         -x "${LLVM_COV:-llvm-cov} gcov >/dev/null 2>&1"
 }
-
-trigger_downstream() {
-    body="{
-        \"request\": {
-          \"message\": \"Triggered build: Mapnik core commit ${TRAVIS_COMMIT}\",
-          \"branch\":\"master\"
-        }
-    }
-    "
-
-    curl -s -X POST \
-      -H "Content-Type: application/json" \
-      -H "Accept: application/json" \
-      -H "Travis-API-Version: 3" \
-      -H "Authorization: token ${TRAVIS_TRIGGER_TOKEN}" \
-      -d "$body" \
-      https://api.travis-ci.org/repo/mapnik%2Fpython-mapnik/requests
-}