Removed dependency on debug libusb

libusb/msvc/libusb_sources

@@ -1,43 +0,0 @@
-#TARGETTYPE is not defined, to allow selection between static lib or DLL with ddk_build
-TARGETNAME=libusb-1.0
-DLLDEF=..\libusb-1.0.def
-
-_NT_TARGET_VERSION=$(_NT_TARGET_VERSION_WINXP)
-
-!IFNDEF MSC_WARNING_LEVEL
-MSC_WARNING_LEVEL=/W3
-!ENDIF
-
-!IFDEF STATIC_LIBC
-USE_LIBCMT=1
-!ELSE
-USE_MSVCRT=1
-!ENDIF
-
-INCLUDES=..;..\..\msvc;$(DDK_INC_PATH)
-C_DEFINES=$(C_DEFINES) $(LIBUSB_DEFINES) /DDDKBUILD
-
-# http://jpassing.com/2009/10/21/ltcg-issues-with-the-win7amd64-environment-of-wdk-7600/
-# prevents the following error when using the 64 bit static lib with Visual Studio 2010:
-# "fatal error C1001: An internal error has occurred in the compiler.
-# (compiler file 'f:\dd\vctools\compiler\utc\src\p2\p2symtab.c', line 1823)"
-# and the following with Visual Studio 2010:
-# "fatal error C1047: The object or library file 'libusb-1.0.lib' was created with
-#  an older compiler than other objects; rebuild old objects and libraries"
-USER_C_FLAGS=/GL-
-
-TARGETLIBS=$(SDK_LIB_PATH)\advapi32.lib \
-           $(SDK_LIB_PATH)\kernel32.lib
-
-SOURCES=..\core.c \
-	..\descriptor.c \
-	..\hotplug.c \
-	..\io.c \
-	poll_windows.c \
-	..\strerror.c \
-	..\sync.c \
-	threads_windows.c \
-	windows_nt_common.c \
-	windows_usbdk.c \
-	windows_winusb.c \
-	..\libusb-1.0.rc