refactor: remove not needed code in BuiltinFunctionsLibImpl

- builtins are released with the object, no need for explicit release of
just first builtin in array

Signed-off-by: Mateusz Hoppe <mateusz.hoppe@intel.com>

level_zero/core/source/builtin/builtin_functions_lib_impl.h

@@ -28,8 +28,6 @@ struct BuiltinFunctionsLibImpl : BuiltinFunctionsLib {
     BuiltinFunctionsLibImpl(Device *device, NEO::BuiltIns *builtInsLib);
     ~BuiltinFunctionsLibImpl() override {
         this->ensureInitCompletionImpl();
-        builtins->reset();
-        imageBuiltins->reset();
     }
 
     Kernel *getFunction(Builtin func) override;