remove obsolete IBM Cell SDK makefiles

src/LinearMath/ibmsdk/Makefile

@@ -1,39 +0,0 @@
-#### Source code Dirs
-VPATH =	../
-
-ROOT = ../../..
-
-#### Library
-LIBRARY_ppu = bulletmath.a
-
-#### Compiler flags
-CPPFLAGS        = 		\
--DUSE_LIBSPE2			\
--I$(ROOT)/src			\
--I$(SDKINC)
-
-#### Optimization level flags
-#CC_OPT_LEVEL =  $(CC_OPT_LEVEL_DEBUG)
-CC_OPT_LEVEL =  -O3
-
-##### Objects to be archived in lib
-
-OBJS = 					\
-btAlignedAllocator.o			\
-btGeometryUtil.o			\
-btQuickprof.o
-
-#### Install directories
-INSTALL_DIR	=  $(ROOT)/lib/ibmsdk
-INSTALL_FILES	= $(LIBRARY_ppu)
-
-IBM_CELLSDK_VERSION := $(shell if [ -d /opt/cell ]; then echo "3.0"; fi)
-
-ifeq ("$(IBM_CELLSDK_VERSION)","3.0")
-        CELL_TOP ?= /opt/cell/sdk
-        include $(CELL_TOP)/buildutils/make.footer
-else
-        CELL_TOP ?= /opt/ibm/cell-sdk/prototype
-        include $(CELL_TOP)/make.footer
-endif
-