cleanup: more simplifications (#2574)

examples/features/authentication/oauth/server/main.go

@@ -96,10 +96,7 @@ func valid(authorization []string) bool {
 	// Perform the token validation here. For the sake of this example, the code
 	// here forgoes any of the usual OAuth2 token validation and instead checks
 	// for a token matching an arbitrary string.
-	if token != "some-secret-token" {
-		return false
-	}
-	return true
+	return token == "some-secret-token"
 }
 
 // ensureValidToken ensures a valid token exists within a request's metadata. If

examples/features/interceptor/server/main.go

@@ -89,10 +89,7 @@ func valid(authorization []string) bool {
 	// Perform the token validation here. For the sake of this example, the code
 	// here forgoes any of the usual OAuth2 token validation and instead checks
 	// for a token matching an arbitrary string.
-	if token != "some-secret-token" {
-		return false
-	}
-	return true
+	return token == "some-secret-token"
 }
 
 func unaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {

examples/features/load_balancing/client/main.go

@@ -111,7 +111,7 @@ type exampleResolver struct {
 
 func (r *exampleResolver) start() {
 	addrStrs := r.addrsStore[r.target.Endpoint]
-	addrs := make([]resolver.Address, len(addrStrs), len(addrStrs))
+	addrs := make([]resolver.Address, len(addrStrs))
 	for i, s := range addrStrs {
 		addrs[i] = resolver.Address{Addr: s}
 	}

examples/features/name_resolving/client/main.go

@@ -119,7 +119,7 @@ type exampleResolver struct {
 
 func (r *exampleResolver) start() {
 	addrStrs := r.addrsStore[r.target.Endpoint]
-	addrs := make([]resolver.Address, len(addrStrs), len(addrStrs))
+	addrs := make([]resolver.Address, len(addrStrs))
 	for i, s := range addrStrs {
 		addrs[i] = resolver.Address{Addr: s}
 	}