actually remove the environment variable

Author: atollena

internal/envconfig/envconfig.go

@@ -33,10 +33,6 @@ var (
 	// "GRPC_RING_HASH_CAP".  This does not override the default bounds
 	// checking which NACKs configs specifying ring sizes > 8*1024*1024 (~8M).
 	RingHashCap = uint64FromEnv("GRPC_RING_HASH_CAP", 4096, 1, 8*1024*1024)
-	// LeastRequestLB is set if we should support the least_request_experimental
-	// LB policy, which can be enabled by setting the environment variable
-	// "GRPC_EXPERIMENTAL_ENABLE_LEAST_REQUEST" to "true".
-	LeastRequestLB = boolFromEnv("GRPC_EXPERIMENTAL_ENABLE_LEAST_REQUEST", false)
 	// ALTSMaxConcurrentHandshakes is the maximum number of concurrent ALTS
 	// handshakes that can be performed.
 	ALTSMaxConcurrentHandshakes = uint64FromEnv("GRPC_ALTS_MAX_CONCURRENT_HANDSHAKES", 100, 1, 100)