Remove unnecessary reflection

[Alexdoru]

It's just reflecting classes that are within the same mod

[glowredman]

Please cache the result of Loader.isModLoaded().

Have you checked if the game doesn't crash now if NEI is not installed?

[Alexdoru]

Please cache the result of Loader.isModLoaded().

No I won't there is no point.
Can we stop automatically saying "can you cache the isModLoaded call" everytime there is one ? It makes sense if it is called often in a code "hotspot" but here it is called once when the game starts and then it is called one time when you press a Waila keybind. Caching such a call would make 0 effect on performance.

Have you checked if the game doesn't crash now if NEI is not installed?

It does indeed work when NEI is not present.