Fix #1600

Removed unnecessary `` which cause problems with pgsql.
https://github.com/mybb/mybb/issues/1600
It is inconsistent to the current code, you are being inconsistent with what has already coded. Why is is too difficult to keep the standards already defined in-code? Standard don't necessarily have to be documented.

Even if the whole community gets fuck*d up that doesn't mean we are going to star spaghetti-coding. Does it? Security issues shouldn't be reflected in code.

Again, I don't want to start a fight but it seems to me that you just keep ignoring the basics because of _why not_ reasons.