ENH: remove c flags from cxx config file

Modules/Platform/Linux-Intel-CXX.cmake

@@ -1,9 +1,3 @@
-SET (CMAKE_C_FLAGS_INIT "")
-SET (CMAKE_C_FLAGS_DEBUG_INIT "-g")
-SET (CMAKE_C_FLAGS_MINSIZEREL_INIT "-Os -DNDEBUG")
-SET (CMAKE_C_FLAGS_RELEASE_INIT "-O3 -DNDEBUG")
-SET (CMAKE_C_FLAGS_RELWITHDEBINFO_INIT "-O2 -g")
-
 SET (CMAKE_CXX_FLAGS_INIT "")
 SET (CMAKE_CXX_FLAGS_DEBUG_INIT "-g")
 SET (CMAKE_CXX_FLAGS_MINSIZEREL_INIT "-Os -DNDEBUG")