Removed unused custom strchr function

src/utils.c

@@ -43,17 +43,6 @@ void convertUint256BE(uint8_t *data, uint32_t length, uint256_t *target) {
     readu256BE(tmp, target);
 }
 
-int local_strchr(char *string, char ch) {
-    unsigned int length = strlen(string);
-    unsigned int i;
-    for (i = 0; i < length; i++) {
-        if (string[i] == ch) {
-            return i;
-        }
-    }
-    return -1;
-}
-
 uint64_t u64_from_BE(const uint8_t *in, uint8_t size) {
     uint8_t i = 0;
     uint64_t res = 0;

src/utils.h

@@ -26,8 +26,6 @@ void array_hexstr(char* strbuf, const void* bin, unsigned int len);
 
 void convertUint256BE(uint8_t* data, uint32_t length, uint256_t* target);
 
-int local_strchr(char* string, char ch);
-
 uint64_t u64_from_BE(const uint8_t* in, uint8_t size);
 
 bool uint256_to_decimal(const uint8_t* value, size_t value_len, char* out, size_t out_len);