Remove code for adding MySQL documentation links to query

This does not work anyway with CodeMirror based highlighter.
PMA_Util::formatSql now requires unparsed query as well

In most cases we just need to output it as is, formatting is done in
javascript.
Simplify PMA_Util::formatSql function

We no longer need to use parsed query, it's anyway done in javascript.
Drop formatting choices here

They do not have any effect with CodeMirror highlighting anyway, this
configuration has to be passed to javascript and handled there.
Remove unused parameter from PMA_Util::formatSql

We no longer need parsed SQL here.
No need to check for parser error as we do not highlight the query anyway
As PMA_Util::formatSql is now trivial, the test can be as well
Incorporate truncating into PMA_Util::formatSql

It is used quite often as well.
Use new truncating code