tests UPDATE remove useless buf_add_char fuzzing
diff --git a/tests/fuzz/CMakeLists.txt b/tests/fuzz/CMakeLists.txt
index 98737c7..3da61e1 100644
--- a/tests/fuzz/CMakeLists.txt
+++ b/tests/fuzz/CMakeLists.txt
@@ -1,5 +1,5 @@
 if(ENABLE_FUZZ_TARGETS)
-    set(fuzz_targets lys_parse_mem lyd_parse_mem_xml lyd_parse_mem_json buf_add_char yang_parse_module)
+    set(fuzz_targets lys_parse_mem lyd_parse_mem_xml lyd_parse_mem_json yang_parse_module)
 
     if(FUZZER STREQUAL "AFL")
         foreach(target_name IN LISTS fuzz_targets)
diff --git a/tests/fuzz/buf_add_char.c b/tests/fuzz/buf_add_char.c
deleted file mode 100644
index 0f472b8..0000000
--- a/tests/fuzz/buf_add_char.c
+++ /dev/null
@@ -1,52 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-
-#include "libyang.h"
-
-LY_ERR buf_add_char(struct ly_ctx *ctx, const char **input, size_t len, char **buf, size_t *buf_len, size_t *buf_used);
-
-int LLVMFuzzerTestOneInput(uint8_t const *buf, size_t len)
-{
-	struct ly_ctx *ctx = NULL;
-	LY_ERR err;
-	uint8_t *data = NULL;
-	uint8_t *old_data = NULL;
-	uint8_t *dest = NULL;
-	size_t dest_len = 0;
-	size_t used = 0;
-	static bool log = false;
-
-	if (!log) {
-		ly_log_options(0);
-		log = true;
-	}
-
-	err = ly_ctx_new(NULL, 0, &ctx);
-	if (err != LY_SUCCESS) {
-		fprintf(stderr, "Failed to create context\n");
-		return 0;
-	}
-
-	data = malloc(len);
-	if (data == NULL) {
-		return 0;
-	}
-
-	dest = malloc(len);
-	if (dest == NULL) {
-		return 0;
-	}
-	dest_len = len;
-
-	memcpy(data, buf, len);
-	old_data = data;
-	err = buf_add_char(ctx, (const char **) &data, len, (char **) &dest, &dest_len, &used);
-
-	free(old_data);
-	free(dest);
-	ly_ctx_destroy(ctx);
-
-	return 0;
-}