Remove unneeded realpath that was causing bad dependencies in a clean build

(cherry picked from commit 361b324a396071aa6e32ca3296ab07818f887e59)

Change-Id: I59756a4ad89014d01e4022caf63d1ac34bef5c07
diff --git a/build/Android.oat.mk b/build/Android.oat.mk
index 8240ece..4e8d1cc 100644
--- a/build/Android.oat.mk
+++ b/build/Android.oat.mk
@@ -47,7 +47,7 @@
 2ND_TARGET_CORE_IMG_OUT := $(ART_TEST_OUT)/$($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH)/core.art
 endif
 
-HOST_CORE_IMG_LOCATION := $(realpath $(HOST_OUT_JAVA_LIBRARIES))/core.art
+HOST_CORE_IMG_LOCATION := $(HOST_OUT_JAVA_LIBRARIES)/core.art
 
 TARGET_INSTRUCTION_SET_FEATURES := $(DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES)