Remove MapboxV10 constant and dead code (#4166) #3874

Job	Run time
has_mapbox_token	3s
lint_test_generate	2m 20s
CI requiring tokens / Android/Mapbox11/Fabric / Android Example Build Fabric mapbox11	39m 54s
CI requiring tokens / iOS/Mapbox11/Fabric / iOS Example Build Fabric mapbox11	35m 27s
CI requiring tokens / Web/Mapbox / Example Build for Web	2m 10s
publish	0s
	1h 19m 54s

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