Back out seting of vfs.nfs.bufpackets.

It didn't fix the problem and it makes nodes fail on startup sometimes.

tmcd/freebsd/jail/mkjail.pl

@@ -406,14 +406,6 @@ sub mkrootfs($)
 	push(@mntpoints, "$path/root/$dir");
     }
 
-    #
-    # Pump up the amount of space that can be used per NFS client socket
-    # (up to 64 pending packets @ 8k per packet with default read/write size)
-    #
-    if ($NFSMOUNT_LOCAL) {
-	mysystem("sysctl vfs.nfs.bufpackets=64 >/dev/null 2>&1");
-    }
-
     #
     # The proc FS in the jail is per-jail of course.
     # 
@@ -627,14 +619,6 @@ sub restorerootfs($)
 	push(@mntpoints, "$path/root/$dir");
     }
 
-    #
-    # Pump up the amount of space that can be used per NFS client socket
-    # (up to 64 pending packets @ 8k per packet with default read/write size)
-    #
-    if ($NFSMOUNT_LOCAL) {
-	mysystem("sysctl vfs.nfs.bufpackets=64 >/dev/null 2>&1");
-    }
-
     tmcccopycache($vnodeid, "$path/root");
 
     #