remove unused lxc_read_line_from_file()

src/lxc/utils.c

@@ -869,30 +869,3 @@ int lxc_read_from_file(const char *filename, void* buf, size_t count)
 	errno = saved_errno;
 	return ret;
 }
-
-char *lxc_read_line_from_file(const char *filename)
-{
-	FILE *f;
-	char *line = NULL;
-	int saved_errno;
-	size_t sz = 0;
-
-	f = fopen_cloexec(filename, "r");
-	if (!f)
-		return NULL;
-
-	if (getline(&line, &sz, f) == -1) {
-		saved_errno = errno;
-		fclose(f);
-		errno = saved_errno;
-		return NULL;
-	}
-
-	fclose(f);
-
-	/* trim line, if necessary */
-	if (strlen(line) > 0 && line[strlen(line) - 1] == '\n')
-		line[strlen(line) - 1] = '\0';
-
-	return line;
-}

src/lxc/utils.h

@@ -197,7 +197,6 @@ extern int sha1sum_file(char *fnam, unsigned char *md_value);
 /* read and write whole files */
 extern int lxc_write_to_file(const char *filename, const void* buf, size_t count, bool add_newline);
 extern int lxc_read_from_file(const char *filename, void* buf, size_t count);
-extern char *lxc_read_line_from_file(const char *filename);
 
 /* convert variadic argument lists to arrays (for execl type argument lists) */
 extern char** lxc_va_arg_list_to_argv(va_list ap, size_t skip, int do_strdup);