Revert "PGPRO-1059: Add PG version into show output"

This reverts commit a7826d0.

Author: za-arthur

src/show.c

@@ -226,18 +226,15 @@ show_backup_list(FILE *out, parray *backup_list)
 
 	/* if you add new fields here, fix the header */
 	/* show header */
-	fputs("============================================================================================================================================\n", out);
-	fputs(" Instance    Version  ID      Recovery time           Mode    WAL      Current/Parent TLI    Time    Data   Start LSN    Stop LSN    Status \n", out);
-	fputs("============================================================================================================================================\n", out);
+	fputs("==================================================================================================================================\n", out);
+	fputs(" Instance    ID      Recovery time           Mode    WAL      Current/Parent TLI    Time    Data    Start LSN    Stop LSN   Status\n", out);
+	fputs("==================================================================================================================================\n", out);
 
 	for (i = 0; i < parray_num(backup_list); i++)
 	{
 		pgBackup   *backup = parray_get(backup_list, i);
 		TimeLineID	parent_tli;
-		FILE	   *fp;
 		char	   *backup_id;
-		char		pg_version_path[MAXPGPATH];
-		char		pg_version[100] = "---";
 		char		timestamp[100] = "----";
 		char		duration[20] = "----";
 		char		data_bytes_str[10] = "----";
@@ -260,27 +257,8 @@ show_backup_list(FILE *out, parray *backup_list)
 		parent_tli = get_parent_tli(backup->tli);
 		backup_id = base36enc(backup->start_time);
 
-		/* Read PG_VERSION file to show backup version */
-		pgBackupGetPath2(backup, pg_version_path, lengthof(pg_version_path),
-						 DATABASE_DIR, "PG_VERSION");
-		fp = pgut_fopen(pg_version_path, "rt", true);
-		if (fp)
-		{
-			if (fgets(pg_version, lengthof(pg_version), fp))
-			{
-				int			len = strlen(pg_version);
-
-				/* Remove trailing new line */
-				if (len > 0 && pg_version[len - 1] == '\n')
-					pg_version[len - 1] = '\0';
-			}
-			fclose(fp);
-		}
-
-		fprintf(out, " %-11s %-8s %-6s  %-19s  %-6s  %-7s  %3d / %-3d            %5s  %6s  %2X/%-8X  %2X/%-8X  %-8s\n",
-				instance_name,
-				pg_version,
-				backup_id,
+		fprintf(out, " %-11s %-6s  %-19s  %-6s  %-7s  %3d / %-3d            %5s  %6s  %2X/%-8X  %2X/%-8X  %-8s\n",
+				instance_name, backup_id,
 				timestamp,
 				pgBackupGetBackupMode(backup),
 				backup->stream ? "STREAM": "ARCHIVE",