Fix for removed units

Latest dcs data exports have some units removed which were used in two generators.

gen/sam/aaa_ww2_ally_flak.py

@@ -63,13 +63,6 @@ class AllyWW2FlakGenerator(AirDefenseGroupGenerator):
             self.position.y + 20,
             Heading.random(),
         )
-        self.add_unit(
-            Unarmed.M4_Tractor,
-            "LOG#2",
-            self.position.x + 20,
-            self.position.y,
-            Heading.random(),
-        )
         self.add_unit(
             Unarmed.Bedford_MWD,
             "LOG#3",

gen/sam/sam_sa8.py

@@ -27,13 +27,6 @@ class SA8Generator(AirDefenseGroupGenerator):
                 position[1],
                 position[2],
             )
-        self.add_unit(
-            AirDefence.SA_8_Osa_LD_9T217,
-            "LD",
-            self.position.x + 20,
-            self.position.y,
-            self.heading,
-        )
 
     @classmethod
     def range(cls) -> AirDefenseRange: