CMake: Remove dependency on gmp and libintl from FindPython.cmake

Downloaded from Openelec:
https://github.com/OpenELEC/OpenELEC.tv/blob/master/packages/mediacenter/kodi/patches/kodi-998.02-cmake-python.patch

The dependency for libintl and gmp was introduced by this commit
https://github.com/xbmc/xbmc/commit/8558d672e98b62f3ea0126ba491376add8ed71cb
without further explanation and, apparently, without necessity.

A question asking whether this is really needed was sent upstream:
https://github.com/xbmc/xbmc/pull/10973#pullrequestreview-34179550

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>

diff -Naur kodi-17.1-Krypton/project/cmake/modules/FindPython.cmake kodi-17.1-Krypton.patch/project/cmake/modules/FindPython.cmake
--- kodi-17.1-Krypton/project/cmake/modules/FindPython.cmake	2017-03-20 17:17:49.000000000 +0100
+++ kodi-17.1-Krypton.patch/project/cmake/modules/FindPython.cmake	2017-03-30 11:10:01.065718667 +0200
@@ -16,14 +16,12 @@
 if(KODI_DEPENDSBUILD)
   find_library(FFI_LIBRARY ffi REQUIRED)
   find_library(EXPAT_LIBRARY expat REQUIRED)
-  find_library(INTL_LIBRARY intl REQUIRED)
-  find_library(GMP_LIBRARY gmp REQUIRED)
 
   if(NOT CORE_SYSTEM_NAME STREQUAL android)
     set(PYTHON_DEP_LIBRARIES pthread dl util)
   endif()
 
-  set(PYTHON_LIBRARIES ${PYTHON_LIBRARY} ${FFI_LIBRARY} ${EXPAT_LIBRARY} ${INTL_LIBRARY} ${GMP_LIBRARY} ${PYTHON_DEP_LIBRARIES})
+  set(PYTHON_LIBRARIES ${PYTHON_LIBRARY} ${FFI_LIBRARY} ${EXPAT_LIBRARY} ${PYTHON_DEP_LIBRARIES})
 else()
   find_package(PythonLibs 2.7 REQUIRED)
   list(APPEND PYTHON_LIBRARIES ${PC_PYTHON_STATIC_LIBRARIES})
@@ -36,4 +34,4 @@
   set(PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_DIR})
 endif()
 
-mark_as_advanced(PYTHON_EXECUTABLE PYTHON_INCLUDE_DIRS PYTHON_INCLUDE_DIR PYTHON_LIBRARY PYTHON_LIBRARIES PYTHON_LDFLAGS FFI_LIBRARY EXPAT_LIBRARY INTL_LIBRARY GMP_LIBRARY)
+mark_as_advanced(PYTHON_EXECUTABLE PYTHON_INCLUDE_DIRS PYTHON_INCLUDE_DIR PYTHON_LIBRARY PYTHON_LIBRARIES PYTHON_LDFLAGS FFI_LIBRARY EXPAT_LIBRARY)