Remove unused proto
diff --git a/heron/proto/pplan.proto.oldx b/heron/proto/pplan.proto.oldx
deleted file mode 100644
index 3a270bf..0000000
--- a/heron/proto/pplan.proto.oldx
+++ /dev/null
@@ -1,91 +0,0 @@
-package heron.proto.system;
-
-option java_package = "com.twitter.heron.proto.system";
-option java_outer_classname = "PhysicalPlans";
-
-enum CompType {
- SPOUT = 1;
- BOLT = 2;
-}
-
-enum GroupType {
- RANDOM = 1;
- SHUFFLE = 2;
- FIELDS = 3;
- REPLICATE = 4;
- NONE = 5;
- SELF = 6;
-}
-
-message Schema {
- repeated string keys = 1;
-}
-
-message Manager {
- required string id = 1;
- required string name = 2;
- required int32 dport = 3;
- required int32 cport = 4;
- required string epoint = 5;
-}
-
-message Group {
- required string id = 1;
- required string host_id = 2;
-}
-
-message Stream {
- required string id = 1;
- required GroupType gtype = 2;
-}
-
-message Grouping {
- required Stream stream = 1;
- repeated Group groups = 2;
-}
-
-message Input {
- required Stream stream = 1;
- required string group_id = 2;
-}
-
-message Output {
- required string stream_id = 1;
- required Schema schema = 2;
-}
-
-message Worker {
- required string id = 1;
- required string host_id = 2;
- required CompType comp_type = 3;
- required string instance_id = 4;
-}
-
-message Component {
- required string id = 1;
- required string class_name = 2;
-}
-
-message SpoutInstance {
- required string id = 1;
- required Component comp_id = 2;
- repeated Output ostreams = 3;
- repeated string params = 4;
-}
-
-message BoltInstance {
- required string id = 1;
- required Component comp_id = 2;
- repeated Input istreams = 3;
- repeated Output ostreams = 4;
- repeated string params = 5;
-}
-
-message PhysicalPlan {
- repeated Manager mgrs = 1;
- repeated Stream streams = 2;
- repeated Grouping groupings = 3;
- repeated Worker workers = 4;
- repeated SpoutInstance spouts = 5;
- repeated BoltInstance bolts = 6;
-}
