PS-4794 ps-admin does not disable THP when installing MyRocks

In the note, removed the line about disabling THP
Rewrote the note to one line by removing the remaining item and incorporating the item into the lead sentence.

doc/source/myrocks/install.rst

@@ -75,11 +75,10 @@ to properly enable the RocksDB (MyRocks) storage engine:
    Installing RocksDB engine...
    INFO: Successfully installed RocksDB engine plugin.
 
-.. note:: When you use the ``ps-admin`` script to enable Percona MyRocks,
-   it performs the following:
-
-   * Disables Transparent huge pages
-   * Installs and enables the RocksDB plugin
+.. note:: 
+        
+    Running the ``ps-admin`` script to enable Percona MyRocks also
+    installs and enables the RocksDB plugin.
 
 If the script returns no errors,
 Percona MyRocks should be successfully enabled on the server.