Docs, LTTP: clarify not using qusb and remove redundancies

[alwaysintreble]

What is this fixing or adding?

Hopefully reduce people trying and failing to use QUsb2SNES

How was this tested?

I read it.

[Joethepic]

This might also want to be applied to smz3 and possibly other snes guides

[SoldierofOrder]

Just a couple of suggestions! Looks good to me otherwise. :)

[Bicoloursnake]

Following @black-sliver putting this up to community review, I went and looked through this. The update looks good. Soldier's recommendations also look good with the one caveat I noted above.

[PoryGone]

This looks good to me, language-wise.

[ThePhar]

If we're gonna edit this doc, we may also want to update the sections that reference which lua to load.

See:

• ##### BizHawk 3. Drag+drop the 'Connector.lua' file that you downloaded above onto the main EmuHawk window.
  • There is no Connector.lua file anymore.
• ##### snes9x-rr 5. Select the connector lua file included with your client
  • What connector lua file? 🤷
  • 

[alwaysintreble]

If we're gonna edit this doc, we may also want to update the sections that reference which lua to load.

See:

• ##### BizHawk 3. Drag+drop the 'Connector.lua' file that you downloaded above onto the main EmuHawk window.

  • There is no Connector.lua file anymore.

• ##### snes9x-rr 5. Select the connector lua file included with your client

  • What connector lua file? 🤷
  • 

You're looking in the wrong directory. lttp still uses the SNI connector, that hasn't changed. /SNI/lua/ which the guide references.

[ThePhar]

I did absolutely read it wrong. I shouldn't review after a certain hour. LGTM