Removed the mingw32 reference

Author: sago007

.travis.yml

@@ -10,7 +10,6 @@ script: ./travis-ci-build.sh
 
 before_install:
   - sudo apt-get update -qq
-  - sudo apt-get remove -qq -y mingw32
   - sudo apt-get install -q -y libgl1-mesa-dev libsdl1.2-dev libvorbis-dev libfreetype6-dev mingw-w64
 
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