Remove explicit dex2oat calls from run-test

Change-Id: If7222e834602bfc1232ac199ab81e7c09c058f43
diff --git a/test/etc/host-run-test-jar b/test/etc/host-run-test-jar
index 30a6721..e062a18 100755
--- a/test/etc/host-run-test-jar
+++ b/test/etc/host-run-test-jar
@@ -75,6 +75,7 @@
 export ANDROID_ROOT="${ANDROID_HOST_OUT}"
 export LD_LIBRARY_PATH="${ANDROID_ROOT}/lib"
 export DYLD_LIBRARY_PATH="${ANDROID_ROOT}/lib"
+unset ANDROID_PRODUCT_OUT # avoid defaulting dex2oat --host-prefix to target output
 
 exe="${ANDROID_ROOT}/bin/oatexecd"