[Temporal] Remove v8 staging test plain-date-time-from

The tests in `test/staging/Temporal/v8/plain-date-time-from.js` are covered by tests in
- `test/built-ins/Temporal/PlainDateTime/from/options-wrong-type.js` --> add Infinity, NaN, null
- `test/built-ins/Temporal/PlainDateTime/from/overflow-invalid-string.js`
- `test/built-ins/Temporal/PlainDateTime/from/options-undefined.js`
- `test/built-ins/Temporal/PlainDateTime/from/options-object.js`
- `test/built-ins/Temporal/PlainDateTime/from/overflow-reject.js`
- `test/built-ins/Temporal/PlainDateTime/from/argument-object.js`

Author: ioannad

test/built-ins/Temporal/PlainDateTime/from/options-wrong-type.js

@@ -14,6 +14,9 @@ const badOptions = [
   Symbol(),
   1,
   2n,
+  Infinity,
+  NaN,
+  null,
 ];
 
 for (const value of badOptions) {