cleanup some shit in auth service

internal/auth/handler/grpc/auth.go

@@ -3,14 +3,12 @@ package grpc
 import (
 	"context"
 	"log"
-	"strings"
 
 	"datarush/internal/auth/domain"
 	"datarush/internal/auth/service"
 	pb "datarush/pkg/api/auth"
 
 	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
 )
 
@@ -58,18 +56,8 @@ func (h *AuthHandler) SignIn(ctx context.Context, req *pb.SignInRequest) (*pb.Si
 func (h *AuthHandler) ValidateToken(ctx context.Context, req *pb.ValidateTokenRequest) (*pb.ValidateTokenResponse, error) {
 	token := req.Token
 
-	// If token is empty, try to get it from Authorization header (for gRPC-Gateway)
 	if token == "" {
-		md, ok := metadata.FromIncomingContext(ctx)
-		if ok {
-			authHeaders := md.Get("authorization")
-			if len(authHeaders) > 0 {
-				parts := strings.Split(authHeaders[0], " ")
-				if len(parts) == 2 && parts[0] == "Bearer" {
-					token = parts[1]
-				}
-			}
-		}
+		return nil, status.Error(codes.Unauthenticated, "missing token")
 	}
 
 	if token == "" {