remove all mention of [clear] from the README
@@ -299,11 +299,6 @@ Note that the values of variables belonging to successful queries are
printed out, on one line each. Uninstantiated variables are denoted by
a number preceded by an underscore (`X = _0` in an example above).
-To clear the database, type
-```
-?- [clear].
-```
-
To quit scryer-prolog, type
```
?- halt.
