Replace strocpy with g_strlcpy

The only difference was that the former returned 1 if the buffer was
overflown, but the return value was never checked.

src/core/misc.c

@@ -773,20 +773,6 @@ char *escape_string(const char *str)
 	return ret;
 }
 
-int strocpy(char *dest, const char *src, size_t dstsize)
-{
-	if (dstsize == 0)
-		return -1;
-
-	while (*src != '\0' && dstsize > 1) {
-		*dest++ = *src++;
-		dstsize--;
-	}
-
-	*dest++ = '\0';
-	return *src == '\0' ? 0 : -1;
-}
-
 int nearest_power(int num)
 {
 	int n = 1;

src/core/misc.h

@@ -83,9 +83,6 @@ int parse_size(const char *size, int *bytes);
    Stop when `end_char' is found from string. */
 int is_numeric(const char *str, char end_char);
 
-/* Like strlcpy(), but return -1 if buffer was overflown, 0 if not. */
-int strocpy(char *dest, const char *src, size_t dstsize);
-
 /* strstr() with case-ignoring */
 char *stristr(const char *data, const char *key);