Simplify travis

.travis.yml

@@ -9,17 +9,14 @@ env:
   - IOS_SDK=iphonesimulator12.2
   matrix:
   - DESTINATION="OS=12.2,name=iPhone 6S"         SCHEME="$IOS_FRAMEWORK_SCHEME"     SDK="$IOS_SDK"     RUN_TESTS="YES"
-before_install:
-- gem install xcpretty --no-rdoc --no-ri --no-document --quiet
 script:
 - set -o pipefail
 - xcodebuild -version
 - xcodebuild -showsdks
 - if [ $RUN_TESTS == "YES" ]; then xcodebuild -workspace "$WORKSPACE" -scheme "$SCHEME"
   -sdk "$SDK" -destination "$DESTINATION" -configuration Debug ONLY_ACTIVE_ARCH=NO
   test | xcpretty -c; else xcodebuild -workspace "$WORKSPACE" -scheme "$SCHEME" -sdk
-  "$SDK" -destination "$DESTINATION" -configuration Debug ONLY_ACTIVE_ARCH=NO build
-  | xcpretty -c; fi
+  "$SDK" -destination "$DESTINATION" -configuration Debug ONLY_ACTIVE_ARCH=NO build; fi
 notifications:
   email: false
   slack: