Revert "travis: test mac native upload"

This reverts commit f5dbafe013.

private/upload_native.sh

@@ -1,16 +1,15 @@
 #!/bin/sh
 set -e
 NATIVE_CHANGES="$(git diff-tree --name-only "$TRAVIS_COMMIT" -- jme3-bullet-native/)"
-# if [ "$NATIVE_CHANGES" != "" ]; then
+if [ "$NATIVE_CHANGES" != "" ]; then
     git config --global user.email "travis-ci"
     git config --global user.name "travis-ci"
     ./gradlew --no-daemon -PbuildNativeProjects=true :jme3-bullet-native:assemble
     openssl aes-256-cbc -K $encrypted_f0a0b284e2e8_key -iv $encrypted_f0a0b284e2e8_iv -in private/key.enc -out "$HOME/.ssh/id_rsa" -d
     chmod 600 "$HOME/.ssh/id_rsa"
-    ssh -v -T git@github.com
-    # git checkout -q "$TRAVIS_BRANCH"
-    # git add -- jme3-bullet-native/libs/native/
-    # git commit -m "[ci skip] bullet: update $TRAVIS_OS_NAME natives"
-    # git pull -q --rebase
-    # git push git@github.com:jMonkeyEngine/jmonkeyengine.git
-# fi
+    git checkout -q "$TRAVIS_BRANCH"
+    git add -- jme3-bullet-native/libs/native/
+    git commit -m "[ci skip] bullet: update $TRAVIS_OS_NAME natives"
+    git pull -q --rebase
+    git push git@github.com:jMonkeyEngine/jmonkeyengine.git
+fi