[EarlyReturn] Deprecate ReturnBinaryOrToEarlyReturnRector

[TomasVotruba]

Splitting a single || return into a chain of early returns makes the code longer and harder to follow, not clearer.

 class SomeClass
 {
     public function accept()
     {
-        return $this->something() || $this->somethingElse();
+        if ($this->something()) {
+            return true;
+        }
+        return (bool) $this->somethingElse();
     }
 }

The "before" is a single readable boolean expression. The "after" is 4 lines, adds a (bool) cast and requires reading control flow to get the same meaning.

Follows the same path as #8299.

• rule now implements DeprecatedInterface and throws on refactor()
• removed from early-return set
• rule tests removed
• dropped now-unused CallAnalyzer::doesIfHasObjectCall() and AssignAndBinaryMap::getTruthyExpr()