CONFIG: consolidate C++ flags per compiler type

- easier to ensure that flags are consistent

wmake/rules/linuxIcc/c++

@@ -1,17 +1,9 @@
-SUFFIXES += .C .cc .cpp .cxx
-
-c++WARN     = -Wall -Wextra -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -Wno-unknown-pragmas \
-              -diag-disable 327,654,1125,1292,2289,2304,11062,11074,11076
-
-# Suppress some warnings for flex++ and CGAL
-c++LESSWARN = -diag-disable 1224,2026,2305
+include $(GENERAL_RULES)/Icc/c++
 
 CC          = icpc -std=c++11 -fp-trap=common -fp-model precise
 
 include $(DEFAULT_RULES)/c++$(WM_COMPILE_OPTION)
 
-ptFLAGS     = -DNoRepository
-
 c++FLAGS    = $(GFLAGS) $(c++WARN) $(c++OPT) $(c++DBUG) $(ptFLAGS) $(LIB_HEADER_DIRS) -KPIC
 
 Ctoo        = $(WM_SCHEDULER) $(CC) $(c++FLAGS) -c $< -o $@