IGNITE-14525 Removing an empty page (#9059)

diff --git a/docs/_docs/installation/index.adoc b/docs/_docs/installation/index.adoc
deleted file mode 100644
index 8c850f4..0000000
--- a/docs/_docs/installation/index.adoc
+++ /dev/null
@@ -1,21 +0,0 @@
----
-layout: toc
----
-
-// Licensed to the Apache Software Foundation (ASF) under one or more
-// contributor license agreements.  See the NOTICE file distributed with
-// this work for additional information regarding copyright ownership.
-// The ASF licenses this file to You under the Apache License, Version 2.0
-// (the "License"); you may not use this file except in compliance with
-// the License.  You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-
-= Installation
-