chore: update license

Author: paodb

LICENSE

@@ -1,9 +1,4 @@
-All parts, except the contents of the documentation module, are licenced
-under Apache License v2.0. See the license text below.
-
-The documentation is licensed under Creative Commons CC-BY-ND 2.0
-(http://creativecommons.org/licenses/by-nd/2.0/legalcode).
-
+All parts are licensed under Apache License v2.0. See the license text below.
 
 -----------------------------------------------------------------------------
 
@@ -207,4 +202,4 @@ The documentation is licensed under Creative Commons CC-BY-ND 2.0
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
-   limitations under the License.
+   limitations under the License.