Remove useless struct declaration

diff --git a/src/bin/pg_dump/compress_io.h b/src/bin/pg_dump/compress_io.h
index 8edf2b1..bbf450a 100644 (file)
--- a/src/bin/pg_dump/compress_io.h
+++ b/src/bin/pg_dump/compress_io.h
@@ -22,8 +22,6 @@
 #define ZLIB_OUT_SIZE  4096
 #define ZLIB_IN_SIZE   4096
 
-struct _CompressorState;
-
 typedef enum
 {
        COMPR_ALG_NONE,