Remove OSX + Java for now

SWIG 4.0 is giving some weird compilation error which will needs to be adressed at some point:

gdcm/MappingType.java:85: error: incompatible types: Iterator cannot be converted to SWIGTYPE_p_std__mapT_char_const_p_std__mapT_gdcm__Tag_char_const_p_std__lessT_gdcm__Tag_t_t_std__lessT_char_const_p_t_t__iterator

.travis.yml

@@ -54,7 +54,7 @@ matrix:
         - CXXFLAGS="-Wall -Wextra" # -m64 -fsanitize=address,undefined
         # http://stackoverflow.com/questions/15678153/homebrew-python-on-mac-os-x-10-8-fatal-python-error-pythreadstate-get-no-cu
         #- CMAKE_EXTRA="-DGDCM_WRAP_PYTHON:BOOL=ON -DGDCM_BUILD_DOCBOOK_MANPAGES:BOOL=OFF -DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python2.7"
-        - CMAKE_EXTRA="-DGDCM_WRAP_PYTHON:BOOL=ON -DGDCM_WRAP_CSHARP:BOOL=OFF -DGDCM_WRAP_JAVA:BOOL=ON -DGDCM_USE_SYSTEM_UUID:BOOL=ON -DGDCM_USE_SYSTEM_ZLIB:BOOL=ON -DGDCM_BUILD_DOCBOOK_MANPAGES:BOOL=OFF"
+        - CMAKE_EXTRA="-DGDCM_WRAP_PYTHON:BOOL=ON -DGDCM_WRAP_CSHARP:BOOL=OFF -DGDCM_WRAP_JAVA:BOOL=OFF -DGDCM_USE_SYSTEM_UUID:BOOL=ON -DGDCM_USE_SYSTEM_ZLIB:BOOL=ON -DGDCM_BUILD_DOCBOOK_MANPAGES:BOOL=OFF"
         - B_NAME=default
         - CPACK_NAME=Darwin