Code refactoring

Signed-off-by: Athish Pranav D <[email protected]>

Author: Athishpranav2003

plugins/filter_parser/filter_parser.c

@@ -102,9 +102,6 @@ static int configure(struct filter_parser_ctx *ctx,
     struct mk_list *head;
     struct flb_kv *kv;
 
-    ctx->key_name = NULL;
-    ctx->reserve_data = FLB_FALSE;
-    ctx->preserve_key = FLB_FALSE;
     mk_list_init(&ctx->parsers);
 
     if (flb_filter_config_map_set(f_ins, ctx) < 0) {
@@ -328,6 +325,7 @@ static int cb_parser_filter(const void *data, size_t bytes,
                     char *new_buf = NULL;
                     int  new_size;
                     int ret;
+                    
                     ret = flb_msgpack_expand_map(out_buf, out_size,
                                                  append_arr, append_arr_len,
                                                  &new_buf, &new_size);