Update .travis.yml

pandamonium-theorem-prover/.travis.yml

@@ -1,19 +1 @@
-language: java
-install: true
-
-before_install:
-  - chmod +x gradlew
-
-stages:
-  - name: build
-  - name: unitTest
-  - name: integrationTest
-
-jobs:
-  include:
-    - stage: build
-      script: ./gradlew build
-    - stage: unitTest
-      script: ./gradlew test
-    - stage: integrationTest
-      script: ./gradlew integrationTest
+language: java