tweaks: drop a check for something that will not occur

The check has been there for a few months, and will be there for
five more years in the next Ubuntu LTS.

src/files.c

@@ -1485,7 +1485,7 @@ bool write_file(const char *name, FILE *thefile, bool tmp,
 	struct stat st;
 		/* The status fields filled in by stat(). */
 #endif
-	char *realname;
+	char *realname = real_dir_from_tilde(name);
 		/* The filename after tilde expansion. */
 	char *tempname = NULL;
 		/* The name of the temporary file we use when prepending. */
@@ -1496,13 +1496,6 @@ bool write_file(const char *name, FILE *thefile, bool tmp,
 	bool retval = FALSE;
 		/* The return value, to become TRUE when writing has succeeded. */
 
-#ifndef NANO_TINY
-	if (*name == '\0')
-		die("Tried to write a nameless file -- please report a bug\n");
-#endif
-
-	realname = real_dir_from_tilde(name);
-
 #ifdef ENABLE_OPERATINGDIR
 	/* If we're writing a temporary file, we're probably going outside
 	 * the operating directory, so skip the operating directory test. */