Remove some unused enums
diff --git a/src/core/lib/surface/call.c b/src/core/lib/surface/call.c
index c8728fa..43b2e02 100644
--- a/src/core/lib/surface/call.c
+++ b/src/core/lib/surface/call.c
@@ -97,25 +97,6 @@
grpc_mdstr *details;
} received_status;
-/* How far through the GRPC stream have we read? */
-typedef enum {
- /* We are still waiting for initial metadata to complete */
- READ_STATE_INITIAL = 0,
- /* We have gotten initial metadata, and are reading either
- messages or trailing metadata */
- READ_STATE_GOT_INITIAL_METADATA,
- /* The stream is closed for reading */
- READ_STATE_READ_CLOSED,
- /* The stream is closed for reading & writing */
- READ_STATE_STREAM_CLOSED
-} read_state;
-
-typedef enum {
- WRITE_STATE_INITIAL = 0,
- WRITE_STATE_STARTED,
- WRITE_STATE_WRITE_CLOSED
-} write_state;
-
typedef struct batch_control {
grpc_call *call;
grpc_cq_completion cq_completion;