Revert "Rename DexJar interface method to DexJarBuildPath."

This reverts commit 562c240185dd4adcbdb75d2924c69657f6ac7cff.

Reason for revert: breaks `lunch full-eng && m checkbuild`.

Change-Id: Id7c7d6240d98afaf8edd49b6c96cd05534b784cc
diff --git a/java/device_host_converter.go b/java/device_host_converter.go
index 1ffb13f..b40ab93 100644
--- a/java/device_host_converter.go
+++ b/java/device_host_converter.go
@@ -150,7 +150,7 @@
 	return d.implementationAndResourceJars
 }
 
-func (d *DeviceHostConverter) DexJarBuildPath() android.Path {
+func (d *DeviceHostConverter) DexJar() android.Path {
 	return nil
 }