Revert "Create libbase."

Breaks internal master.

This reverts commit 98ff77204cef9bb8f0f27420833233622060a09e.

Change-Id: I18dc6021cb43efff8aa88486c2d980dc2b8eedba
diff --git a/libutils/Android.mk b/libutils/Android.mk
index e9c5f89..7bff14e 100644
--- a/libutils/Android.mk
+++ b/libutils/Android.mk
@@ -39,7 +39,9 @@
 	Tokenizer.cpp \
 	Unicode.cpp \
 	VectorImpl.cpp \
+	file.cpp \
 	misc.cpp \
+	stringprintf.cpp \
 
 host_commonCflags := -DLIBUTILS_NATIVE=1 $(TOOL_CFLAGS) -Werror