patches/RELENG_8_3: if_lagg_vlan_handling.diff removal

This patch wasn't enabled for builds anyway. Checking against
source of 8.3 shows that this change is now shipped in our base
OS and further upstream
patches/RELENG_8_3: if_lagg_panic.diff add comment on future removal

Added a comment on top of the patch indicating when we can
drop it since it has been included in upstream thanks to
Ermal Luçi's effort.
patches/RELENG_8_3: carp_link_state_verify.diff removal

This patch wasn't enabled for builds anyway. Checking against
source of 8.3 shows that this change is now shipped in our base
OS and further upstream
patches/RELENG_8_3: ratectl_patch_only_8.1.RELEAS.diff removal

This patch wasn't enabled for builds anyway. Checking against
source of 8.3 shows that this change is now shipped in our base
OS and further upstream releases.
patches/RELENG_8_3: e1000_head.tgz removal

This driver backport archive wasn't enabled for builds anyway.
Checking against source of 8.3 shows that drivers it contained,
are quite behind to what stock FreeBSD 8.3 delivers:

According to FreeBSD source and our patch:
em:  7.0.8 -> 7.3.2
lem: 1.0.2 -> 1.0.4
igb: 2.0.4 -> 2.3.1
patches/RELENG_8_3: if_axe.tgz removal

This driver patch archive wasn't enabled for builds anyway. Newer
source is being shipped with 8.3, we can now safely drop it.
patches/RELENG_8_3: if_em_vlan_txcsum.RELENG_8.diff removal

This patch archive wasn't enabled for builds anyway. Source in 8.3
shows (not checked every line) that the change is inside if 8.3 onwards
so we can now safely drop it.
Correctly setup the initial values. Also do not pass all environmental vars to the scripts since for now they are unused.
patches/RELENG_8_3: sierra mc8705 note on upstream

Add a comment so we know it's a patch only in our base
and maybe we should propose upstream if it works well for us.
patches/RELENG_8_3: Intel gigabit from 8-STABLE

Cherry-picks fixes from in 8-STABLE as of today.
Excludes later patches that are (hopefully only)
stylistic or too large (would apply to whole tree).

 - Bunch of fixes to em, lem and igb
 - Queues optimizations for igb on multicore systems (0004)
 - README so we know later on when we can drop them.
patches/RELENG_8_3: g_label.c.diff removal

This patch archive wasn't enabled for builds anyway. Source in 8.3
shows that the change is inside 8.3 onwards, we can now safely drop it.
patches/RELENG_8_3: mp_machdep.c removal

This patch wasn't enabled for builds anyway. Source in 8.3
things have change quite much and the patch hasn't been enabled
since at least RELENG_8_1. So strong guess says: Can be safely
removed for future.
patches/RELENG_8_3: if_rum_pr_144642.diff

This patch wasn't enabled for builds anyway. Source in 8.3
shows the change is now present there. We can now safely drop it.
Merge pull request #21 from matsimon/e1000-8-STABLE-cherry-picks

patches/RELENG_8_3: Intel gigabit from 8-STABLE(let's try a build run)
patches/RELENG_8_3: cam_xpt.c.diff removal

This patch wasn't enabled for builds anyway.

- First hunk modifying bus registration wait time
  is confirmed to be part of FreeBSD 8.3.
- For the remaining changes: Keeping a patch for
  some printf debug output isn't of necessity.

Concluding: This patch can be safely removed.
Merge pull request #19 from matsimon/RELENG_8_3-patch-cleanup-RTI

Releng 8.3 patch cleanup (3)