Revert "Add jobscheduler-service.jar to system server class path"

This reverts commit d4d736a4ded598a130c26a4cd28ef56a78f610fe.

Reason for revert: My device didn't boot. :(

Change-Id: Ie4a1934c82b53790c5d60ff67d80e2add0576a58
diff --git a/target/product/media_system.mk b/target/product/media_system.mk
index 04cab45..5c0902d 100644
--- a/target/product/media_system.mk
+++ b/target/product/media_system.mk
@@ -52,7 +52,6 @@
 # The order here is the same order they end up on the classpath, so it matters.
 PRODUCT_SYSTEM_SERVER_JARS := \
     services \
-    jobscheduler-service \
     ethernet-service \
     wifi-service \
     com.android.location.provider \