Remove "const" from parameter of sqlite3BtreeFactory() to avoid a compiler
warning.

FossilOrigin-Name: eb7a544fe49d1626bacecfe53ddc03fe082e3243
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index b1b0472..b47eba4 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -2761,7 +2761,7 @@
 #endif
 void sqlite3Attach(Parse*, Expr*, Expr*, Expr*);
 void sqlite3Detach(Parse*, Expr*);
-int sqlite3BtreeFactory(const sqlite3 *db, const char *zFilename,
+int sqlite3BtreeFactory(sqlite3 *db, const char *zFilename,
                        int omitJournal, int nCache, int flags, Btree **ppBtree);
 int sqlite3FixInit(DbFixer*, Parse*, int, const char*, const Token*);
 int sqlite3FixSrcList(DbFixer*, SrcList*);