Revert "Switch to new vendor directory layout"

This reverts commit d5742209d3.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

vendor/github.com/vishvananda/netlink/nl/syscall.go

@@ -1,37 +0,0 @@
-package nl
-
-// syscall package lack of rule atributes type.
-// Thus there are defined below
-const (
-	FRA_UNSPEC  = iota
-	FRA_DST     /* destination address */
-	FRA_SRC     /* source address */
-	FRA_IIFNAME /* interface name */
-	FRA_GOTO    /* target to jump to (FR_ACT_GOTO) */
-	FRA_UNUSED2
-	FRA_PRIORITY /* priority/preference */
-	FRA_UNUSED3
-	FRA_UNUSED4
-	FRA_UNUSED5
-	FRA_FWMARK /* mark */
-	FRA_FLOW   /* flow/class id */
-	FRA_TUN_ID
-	FRA_SUPPRESS_IFGROUP
-	FRA_SUPPRESS_PREFIXLEN
-	FRA_TABLE  /* Extended table id */
-	FRA_FWMASK /* mask for netfilter mark */
-	FRA_OIFNAME
-)
-
-// ip rule netlink request types
-const (
-	FR_ACT_UNSPEC = iota
-	FR_ACT_TO_TBL /* Pass to fixed table */
-	FR_ACT_GOTO   /* Jump to another rule */
-	FR_ACT_NOP    /* No operation */
-	FR_ACT_RES3
-	FR_ACT_RES4
-	FR_ACT_BLACKHOLE   /* Drop without notification */
-	FR_ACT_UNREACHABLE /* Drop with ENETUNREACH */
-	FR_ACT_PROHIBIT    /* Drop with EACCES */
-)