Revert "Add support for AH-64D_BLK_II as PyDCS Extension"

This reverts commit 7d65e55665.

resources/units/aircraft/AH-64D.yaml

@@ -15,4 +15,4 @@ origin: USA
 price: 20
 role: Attack
 variants:
-  AH-64D Apache Longbow (AI): {}
+  AH-64D Apache Longbow: {}

resources/units/aircraft/AH-64D_BLK_II.yaml

@@ -1,18 +0,0 @@
-always_keeps_gun: true
-description: The legendary 'Apache' is an US twin-turboshaft attack helicopter for
-  a crew of two. It features a nose-mounted sensor suite for target acquisition and
-  night vision systems. It is armed with a 30 mm (1.18 in) M230 chain gun carried
-  between the main landing gear, under the aircraft's forward fuselage, and four hardpoints
-  mounted on stub-wing pylons for carrying armament and stores, typically a mixture
-  of AGM-114 Hellfire missiles and Hydra 70 rocket pods. The AH-64 has significant
-  systems redundancy to improve combat survivability. American AH-64s have served
-  in conflicts in Panama, the Persian Gulf, Kosovo, Afghanistan, and Iraq. Israel
-  used the Apache in its military conflicts in Lebanon and the Gaza Strip. British
-  and Dutch Apaches have seen deployments in wars in Afghanistan and Iraq.
-introduced: 2003
-manufacturer: Boeing
-origin: USA
-price: 20
-role: Attack
-variants:
-  AH-64D Apache Longbow: {}