Remove dependency on linux packages in netstack.

PiperOrigin-RevId: 536560224

pkg/context/BUILD

@@ -12,8 +12,6 @@ go_library(
     ],
     visibility = ["//:sandbox"],
     deps = [
-        "//pkg/abi/linux/errno",
-        "//pkg/errors",
         "//pkg/log",
         "//pkg/waiter",
     ],

pkg/context/context.go

@@ -24,11 +24,10 @@ package context
 
 import (
 	"context"
+	"errors"
 	"sync"
 	"time"
 
-	"gvisor.dev/gvisor/pkg/abi/linux/errno"
-	"gvisor.dev/gvisor/pkg/errors"
 	"gvisor.dev/gvisor/pkg/log"
 	"gvisor.dev/gvisor/pkg/waiter"
 )
@@ -102,7 +101,7 @@ func (nt *NoTask) Block(C <-chan struct{}) error {
 	}
 	select {
 	case <-nt.cancel:
-		return errors.New(errno.EINTR, "interrupted system call") // Interrupted.
+		return errors.New("interrupted system call") // Interrupted.
 	case <-C:
 		return nil
 	}

pkg/tcpip/BUILD

@@ -70,8 +70,6 @@ deps_test(
         "//pkg/sync/locking",
         "//pkg/waiter",
         "//pkg/xdp",
-        "//pkg/abi/linux/errno",
-        "//pkg/errors",
 
         # Other deps.
         "@com_github_google_btree//:go_default_library",