Rename sqlite3SchemaFree() to sqlite3SchemaClear() to more accurately reflect
its function.

FossilOrigin-Name: 71d7440023f67760d0bff4bd7459fe88bd226f30
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index ba5552d..f7700b7 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -2969,7 +2969,7 @@
 void sqlite3RegisterLikeFunctions(sqlite3*, int);
 int sqlite3IsLikeFunction(sqlite3*,Expr*,int*,char*);
 void sqlite3MinimumFileFormat(Parse*, int, int);
-void sqlite3SchemaFree(void *);
+void sqlite3SchemaClear(void *);
 Schema *sqlite3SchemaGet(sqlite3 *, Btree *);
 int sqlite3SchemaToIndex(sqlite3 *db, Schema *);
 KeyInfo *sqlite3IndexKeyinfo(Parse *, Index *);