Remove unneed jar files from the system partition

Fix: 170967644
Test: boot
Test: Make sure the following jar files are removed
$OUT/system/framework/service-blobstore.jar
$OUT/system/framework/service-jobscheduler.jar

Test: But the following *.so are kept.
$OUT/system/lib64/libalarm_jni.so
$OUT/system/lib/libalarm_jni.so

Change-Id: Ia5351d9d3b1dda7bf96e95bbaad171cd8c3b49fc

target/product/base_system.mk

@@ -37,7 +37,6 @@ PRODUCT_PACKAGES += \
     bcc \
     blank_screen \
     blkid \
-    service-blobstore \
     bmgr \
     bootanimation \
     bootstat \
@@ -118,11 +117,11 @@ PRODUCT_PACKAGES += \
     iptables \
     ip-up-vpn \
     javax.obex \
-    service-jobscheduler \
     keystore \
     credstore \
     ld.mc \
     libaaudio \
+    libalarm_jni \
     libamidi \
     libandroid \
     libandroidfw \