Updated module bays list.

device-types/Nokia/7750-SR7s.yaml

@@ -9,14 +9,4 @@ module-bays:
   - name: slot1
     position: '1'
   - name: slot2
-    position: '2'
-  - name: slot3
-    position: '3'
-  - name: slot4
-    position: '4'
-  - name: slot5
-    position: '5'
-  - name: slot6
-    position: '6'
-  - name: slot7
-    position: '7'
+    position: '2'
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