Apply suggestions from code review

Co-authored-by: Michael McKenzie <mikemck101@gmail.com>

Author: blkerby

region/tourian/main/Metroid Room 1.json

@@ -1746,7 +1746,7 @@
       "requires": [
         "Ice",
         {"enemyKill": {
-          "enemies": [["Metroid", "Metroid", "Metroid", "Metroid"]],
+          "enemies": [["Metroid", "Metroid"]],
           "explicitWeapons": ["Super", "Missile"]
         }}
       ],
@@ -2007,7 +2007,8 @@
           {"ammo": {"type": "PowerBomb", "count": 2}}
         ]},
         {"metroidFrames": 170}
-      ],
+      ],
+      "clearsObstacles": ["A", "B"],
       "setsFlags": ["f_KilledMetroidRoom1"],
       "flashSuitChecked": true,
       "blueSuitChecked": true,
@@ -2028,7 +2029,8 @@
           "explicitWeapons": ["PowerBomb"]
         }},
         "canMetroidAvoid"
-      ],
+      ],
+      "clearsObstacles": ["A", "B"],
       "setsFlags": ["f_KilledMetroidRoom1"],
       "flashSuitChecked": true,
       "blueSuitChecked": true,
@@ -2150,7 +2152,8 @@
         "canInsaneJump",
         "h_artificialMorphSpringBall",
         {"ammo": {"type": "PowerBomb", "count": 4}}
-      ],
+      ],
+      "clearsObstacles": ["A", "B"],
       "setsFlags": ["f_KilledMetroidRoom1"],
       "flashSuitChecked": true,
       "blueSuitChecked": true,
@@ -2210,7 +2213,8 @@
         "canComplexGMode",
         "h_CrystalFlash"
       ],
-      "resetsObstacles": ["R-Mode"],
+      "resetsObstacles": ["R-Mode"],
+      "clearsObstacles": ["A", "B"],
       "setsFlags": ["f_KilledMetroidRoom1"],
       "flashSuitChecked": true,
       "blueSuitChecked": true,
@@ -2233,7 +2237,8 @@
         "h_artificialMorphCrystalFlash",
         {"autoReserveTrigger": {}}
       ],
-      "setsFlags": ["f_KilledMetroidRoom1"],
+      "clearsObstacles": ["A", "B"],
+      "setsFlags": ["f_KilledMetroidRoom1"],
       "flashSuitChecked": true,
       "blueSuitChecked": true,
       "note": [