[Travis] Cleanup

Remove git-depth 1 and submodules.
 Submodules are fetched by default, and git-depth 1 has caused problems with AppVeyor in the past.
Remove unneeded addition to PATH, braces, and commented stuff. Releases shouldn't be done with Travis since it uses VS2017.

.travis.yml

@@ -1,9 +1,5 @@
 language: cpp
 
-git:
-  submodules: true
-  depth: 1
-
 matrix:
   include:
   - os: windows
@@ -13,7 +9,6 @@ matrix:
     
 before_script:
   - if [ $TRAVIS_OS_NAME == 'windows' ]; then
-    export PATH="c:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin":$PATH;
     mkdir build;
     cd build;
     cmake .. -G "Visual Studio 15 2017" -A Win32;
@@ -21,27 +16,5 @@ before_script:
 
 script:
   - if [ $TRAVIS_OS_NAME == 'windows' ]; then
-    cmake --build . --config ${configuration};
+    cmake --build . --config $configuration;
     fi
-
-# Bug with the Windows builder requires us to not filter secrets
-#filter_secrets: false
-
-#before_deploy:
-#  - mkdir export
-#  - 7z u export/${configuration} COPYING README.md
-#  - cd build/win32/${configuration}
-#  - 7z u ../../../export/${configuration} Cxbx.exe glew32.dll subhook.dll SDL2.dll
-#  - 7z u ../../../export/${configuration} CxbxDebugger.exe capstone.dll cs_x86.dll
-#  - cd ../../../
-
-#deploy:
-#  provider: releases
-#  api_key: $GH_TOKEN
-#  file: "export/${configuration}.7z"
-#  skip_cleanup: true
-#  on:
-#    # Can disable this to deploy all builds appears as "untagged-buildhash" on GH
-#    tags: true
-#    branch: develop
-#    condition: $configuration = Release