Fix warning about TRANSLATION_DOMAIN being defined twice

generators/chm/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_chm")
 
 add_subdirectory( kio-msits )

generators/comicbook/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_comicbook")
 
 include_directories(

generators/djvu/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_djvu")
 
 include_directories(

generators/dvi/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_dvi")
 
 include_directories(

generators/epub/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_epub")
 
 add_subdirectory(data)

generators/fax/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_fax")
 
 include_directories(

generators/fictionbook/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_fictionbook")
 
 include_directories(

generators/kimgio/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_kimgio")
 
 include_directories(

generators/mobipocket/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_mobi")
 
 ########### next target ###############

generators/ooo/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_ooo")
 
 include_directories(

generators/plucker/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_plucker")
 
 include_directories(

generators/poppler/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_poppler")
 
 add_subdirectory( conf )

generators/spectre/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_ghostview")
 
 add_subdirectory( conf )

generators/tiff/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_tiff")
 
 include_directories(

generators/txt/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_txt")
 
 include_directories(

generators/xps/CMakeLists.txt

+remove_definitions(-DTRANSLATION_DOMAIN="okular")
 add_definitions(-DTRANSLATION_DOMAIN="okular_xps")
 
 include_directories(