Revert "Travis-CI: Try again"

This reverts commit bb2613be6d304e426b4ebbbb7944219375b41be2.
diff --git a/app/build.gradle b/app/build.gradle
index b9b26c4..ddca75a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,7 +3,6 @@
 repositories {
     jcenter()
     maven { url 'https://dl.bintray.com/drummer-aidan/maven' }
-	maven { url "https://jitpack.io" }
 }
 
 android {