Use correct variable name while deleting routing instance. This could cause failure to delete routing instance from internal memory of schema transformer.

Change-Id: I78377ab4c7a9a11c3c110e77db6acd0cf463a8a1
Closes-Bug: 1383520
(cherry picked from commit f2df269546f01d81b81107711952601ca6aa6866)
Merge "Use correct variable name while deleting routing instance. This could cause failure to delete routing instance from internal memory of schema transformer."