Remove KAS Info RPC

[strantalis]

KAS currently has an INFO rpc defined and seems to only be used during tests. Because it is unimplemented we should remove that unused rpc and update any tests that are dependent on it.

platform/service/kas/kas.proto

Lines 61 to 67 in 1be04f6

	rpc Info(InfoRequest) returns (InfoResponse) {
	option (google.api.http) = {get: "/kas"};
	option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_operation) = {
	responses: {key: "200"}
	};
	}