Migration of jsx files to tsx 3 (#851)

This is in continue to:
- #850
- #848

The last files should be converted as part of this PR, there are only a
handful left.

src/components/InputDynamicArray.tsx

@@ -137,7 +137,6 @@ class DeleteValueInputButton extends React.Component<DeleteValueInputButtonProps
     >
       <FieldDocLabel
         label={<MdDelete />}
-        fieldSpec={{doc:" Remove array item."}}
       />
     </InputButton>
   }