added exec perms to make file

Author: mfmaher2

SIT/Makefile

@@ -14,7 +14,6 @@ test_smoke_cmd:
 	./test.sh -p smoke
 
 env_setup:
-    chmod +x ./environment.sh
 	./environment.sh -m setup -j ../target/cassandra-data-migrator*.jar
 env_reset:
 	./environment.sh -m reset -j ../target/cassandra-data-migrator*.jar