Remove ASF armor against Ahwassa bomb (FAForever#6530)

## Reasoning for the changes
Since a delay was added to the Ahwassa bomb, it is possible to micro ASF
out of the explosion, and the armor against it is no longer necessary.

## Description of the proposed changes
- Removes the armor type: I don't think anyone outside of FAF was using
the damage type for this specific balance feature.
- Changes the Ahwassa bomb's damage type to normal.

changelog/snippets/balance.6530.md

@@ -0,0 +1,2 @@
+- (#6530) Remove ASF's armor against Ahwassa bomb, as it is no longer necessary with the new delayed explosion.
+  - Air superiority fighters: Damage taken from Ahwassa bomb 10% -> 100%

lua/armordefinition.lua

@@ -20,7 +20,6 @@
 ---| "FireBeetleExplosion"
 ---| "Normal"
 ---| "Nuke"
----| "OtheTacticalBomb"
 ---| "Overcharge"
 ---| "Reclaimed"
 ---| "Spell"
@@ -105,7 +104,6 @@ armordefinition = {
         -- Armor Definition
         'Normal 1.0',
         'CzarBeam 0.25',
-        'OtheTacticalBomb 0.1',
     },
     {
         -- Armor Type name

units/XSA0402/XSA0402_unit.bp

@@ -210,7 +210,7 @@ UnitBlueprint{
             Damage = 11000,
             DamageFriendly = true,
             DamageRadius = 19,
-            DamageType = "OtheTacticalBomb",
+            DamageType = "Normal",
             DisplayName = "Othe Tactical Bomb",
             FireTargetLayerCapsTable = {
                 Air = "Land|Water|Seabed",