Remove duplicate typedef.

Thinko in commit 323cbe7c, per complaint from BF animal locust's older
GCC compiler.

diff --git a/src/include/replication/logical.h b/src/include/replication/logical.h
index 94e278ef81cf5946912cee5c2e5bb2478195f88e..7dfcb7be187d37eaa716ee18e0cd0ed4b0fee9f8 100644 (file)
--- a/src/include/replication/logical.h
+++ b/src/include/replication/logical.h
@@ -29,8 +29,6 @@ typedef void (*LogicalOutputPluginWriterUpdateProgress) (struct LogicalDecodingC
                                                         TransactionId xid
 );
 
-typedef struct LogicalDecodingContext LogicalDecodingContext;
-
 typedef bool (*LogicalDecodingXLogPageReadCB)(XLogReaderState *ctx);
 
 typedef struct LogicalDecodingContext