FeatureLevelRemove- and SourceLevelRemove-Benchmarks in remove_paint_state.js are exactly the same

[JannikGM]

Unless I'm missing something, both benchmarks were already the same when they were added in #7761 by @peterqliu :

mapbox-gl-js/bench/benchmarks/remove_paint_state.js

Lines 88 to 100 in ff8e087

	export class FeatureLevelRemove extends RemovePaintState {
	bench() {
	for (let i = 0; i < this.numFeatures; i += 50) {
	this.map.setFeatureState({source: 'land', id: i}, {bench: true});
	}
	for (let i = 0; i < this.numFeatures; i += 50) {
	this.map.removeFeatureState({source: 'land', id: i});
	}
	this.map._render();
	}
	}

mapbox-gl-js/bench/benchmarks/remove_paint_state.js

Lines 102 to 114 in ff8e087

	export class SourceLevelRemove extends RemovePaintState {
	bench() {
	for (let i = 0; i < this.numFeatures; i += 50) {
	this.map.setFeatureState({source: 'land', id: i}, {bench: true});
	}
	for (let i = 0; i < this.numFeatures; i += 50) {
	this.map.removeFeatureState({source: 'land', id: i});
	}
	this.map._render();
	}
	}

I haven't used these APIs yet, but I believe the SourceLevelRemove should have used something like this?

// No loop
this.map.removeFeatureState({source: 'land'}); 

Maybe also source-property level like this?

// No loop
this.map.removeFeatureState({source: 'land'}, 'bench');