Remove all the SCons files pending starting a new build system.

src/lib/SConscript

@@ -1,12 +0,0 @@
-
-
-# Inherit global environment
-Import('env')
-Import('config_symbols')
-# The set of source files associated with this SConscript file.
-src_local = ['printk.c', 'putc.c', 'string.c', 'bit.c', 'wait.c', 'mutex.c', 'idpool.c', 'memcache.c']
-if "ARCH_TEST" not in config_symbols:
-	obj = env.Object(src_local)
-else:
-	obj = []
-Return('obj')