Remove `PartialEq` implementations from all builders (#2734) #848

Job	Run time
Build docs	41s
Test (macOS)	3m 23s
Examples	3m 14s
Check minimal versions	34s
MSRV	0s
Test (nightly)	3m 1s
Test (stable)	2m 53s
Test (beta)	3m 13s
Test (Windows)	5m 36s
Test (native-tls)	2m 52s
Test (no default features)	50s
Test (no cache)	2m 47s
Test (no gateway)	1m 48s
Test (unstable Discord API features)	2m 57s
Test (simd-json)	3m 12s
Test (chrono, chrono)	52s
Test (unstable API + typesize, default unstable_discord_api typesize, true)	59s
Test (builder without model, builder, true)	31s
Test (unstable Discord API (no default features), unstable_discord_api, true)	28s
	39m 51s

Provide feedback