Try again

.travis.yml

@@ -11,8 +11,7 @@ env:
 before_install:
   - sudo add-apt-repository -y ppa:codegear/release
   - sudo apt-get update -qq
-  - sudo apt-get install -y premake4 valgrind
-  - sudo apt-get install doxygen
+  - sudo apt-get install -y premake4 valgrind doxygen
 
 install: true
 
@@ -31,8 +30,3 @@ script:
 
 after_script:
   - doxygen build/Doxyfile
-
-matrix:
-  include:
-    - compiler=clang
-      config=release64