ci: do not run go install steps for maven deploy

Signed-off-by: Denys Smirnov <denys@sourced.tech>

.travis.yml

@@ -19,6 +19,7 @@ env:
   - ONIGURUMA=1
 
 install:
+  - go version
   - rm -rf $GOPATH/src/gopkg.in/src-d
   - mkdir -p $GOPATH/src/gopkg.in/src-d
   - ln -s $PWD $GOPATH/src/gopkg.in/src-d/enry.v1
@@ -54,7 +55,7 @@ jobs:
       jdk: oraclejdk8
 
       install:
-        - GIMME_OUTPUT=$(gimme 1.8 | tee -a $HOME/.bashrc) && eval "$GIMME_OUTPUT"
+        - GIMME_OUTPUT=$(gimme 1.9 | tee -a $HOME/.bashrc) && eval "$GIMME_OUTPUT"
         - export GOPATH=$HOME/gopath
         - mkdir -p $GOPATH/src/gopkg.in/src-d/enry.v1
         - rsync -az ${TRAVIS_BUILD_DIR}/ $GOPATH/src/gopkg.in/src-d/enry.v1
@@ -80,7 +81,7 @@ jobs:
         on:
           tags: true
 
-    - stage: Build macOS shared
+    - stage: Build MacOS shared
 
       env:
         - OSXCROSS_PACKAGE="osxcross_3034f7149716d815bc473d0a7b35d17e4cf175aa.tar.gz"
@@ -121,6 +122,9 @@ jobs:
       language: scala
       jdk: oraclejdk8
 
+      install:
+        - go version # override install
+
       before_script:
         - if [[ -z "$TRAVIS_TAG" ]]; then echo "Skipping this build for non-tag builds."; exit 0; fi
         - cd java