[syserror] Update several syserror errors to linuxerr equivalents.

Update/remove most syserror errors to linuxerr equivalents. For list
of removed errors, see //pkg/syserror/syserror.go.

PiperOrigin-RevId: 382574582

pkg/sentry/fsimpl/fuse/connection.go

@@ -19,9 +19,9 @@ import (
 
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/context"
+	"gvisor.dev/gvisor/pkg/errors/linuxerr"
 	"gvisor.dev/gvisor/pkg/log"
 	"gvisor.dev/gvisor/pkg/sentry/kernel"
-	"gvisor.dev/gvisor/pkg/syserror"
 	"gvisor.dev/gvisor/pkg/waiter"
 )
 
@@ -252,11 +252,11 @@ func (conn *connection) Call(t *kernel.Task, r *Request) (*Response, error) {
 	}
 
 	if !conn.connected {
-		return nil, syserror.ENOTCONN
+		return nil, linuxerr.ENOTCONN
 	}
 
 	if conn.connInitError {
-		return nil, syserror.ECONNREFUSED
+		return nil, linuxerr.ECONNREFUSED
 	}
 
 	fut, err := conn.callFuture(t, r)
@@ -306,7 +306,7 @@ func (conn *connection) callFutureLocked(t *kernel.Task, r *Request) (*futureRes
 		conn.mu.Unlock()
 		// we checked connected before,
 		// this must be due to aborted connection.
-		return nil, syserror.ECONNABORTED
+		return nil, linuxerr.ECONNABORTED
 	}
 	conn.mu.Unlock()
 

pkg/sentry/fsimpl/fuse/dev.go

@@ -257,7 +257,7 @@ func (fd *DeviceFD) writeLocked(ctx context.Context, src usermem.IOSequence, opt
 
 	// Return ENODEV if the filesystem is umounted.
 	if fd.fs.umounted {
-		return 0, syserror.ENODEV
+		return 0, linuxerr.ENODEV
 	}
 
 	var cn, n int64

pkg/sentry/fsimpl/fuse/fusefs.go

@@ -397,7 +397,7 @@ func (i *inode) Open(ctx context.Context, rp *vfs.ResolvingPath, d *kernfs.Dentr
 		return nil, syserror.ENOTDIR
 	}
 	if opts.Flags&linux.O_LARGEFILE == 0 && atomic.LoadUint64(&i.size) > linux.MAX_NON_LFS {
-		return nil, syserror.EOVERFLOW
+		return nil, linuxerr.EOVERFLOW
 	}
 
 	var fd *fileDescription