Refactors RO class and removes unused code

Simplifies the `RO` class by removing redundant use statements
and unused methods. Updates references to static `Functions`
methods for clarity and consistency. Cleans up unnecessary
whitespace and comments in both `RO` and `RW` classes. Removes
an incomplete and unused test case from `ROTest`.

Author: Vitexus

src/AbraFlexi/RO.php

@@ -14,8 +14,6 @@
 
 namespace AbraFlexi;
 
-use AbraFlexi\Functions;
-
 /**
  * Základní třída pro čtení z AbraFlexi.
  *
@@ -933,7 +931,7 @@ public function updateApiURL(): void
         }
 
         if (!empty($rowIdentifier)) {
-            $this->apiURL .= '/'. Functions::urlEncode((string) $rowIdentifier);
+            $this->apiURL .= '/'.Functions::urlEncode((string) $rowIdentifier);
         }
 
         $this->apiURL .= '.'.$this->format;
@@ -1644,7 +1642,7 @@ public function getDataForJSON(?array $data = null): array
             $data = $this->getData();
         }
 
-        $dataForJson = [$this->getEvidence() => $this->objectToID($data)];
+        $dataForJson = [$this->getEvidence() => Functions::objectToID($data)];
 
         if (null !== $this->action) {
             $dataForJson[$this->evidence.'@action'] = $this->action;
@@ -2487,7 +2485,6 @@ public function sendByMail($to, $subject, $body, $cc = ''): bool
         return $this->lastResponseCode === 200;
     }
 
-
     /**
      * Získá dokument v daném formátu
      * Obtain document in given format.

src/AbraFlexi/RW.php

@@ -323,7 +323,6 @@ public function takeData(array $data): int
         return parent::takeData($data);
     }
 
-
     /**
      * Control data for ReadOnly columns presence.
      *

tests/src/AbraFlexi/ROTest.php

@@ -340,18 +340,6 @@ protected function tearDown(): void
     //    }
     //
     //    /**
-    //     * @covers \AbraFlexi\RO::objectToID
-    //     *
-    //     * @todo   Implement testobjectToID().
-    //     */
-    //    public function testobjectToID(): void
-    //    {
-    //        $this->assertEquals('', $this->object->objectToID());
-    //        // Remove the following lines when you implement this test.
-    //        $this->markTestIncomplete('This test has not been implemented yet.');
-    //    }
-    //
-    //    /**
     //     * @covers \AbraFlexi\RO::getEvidenceURL
     //     *
     //     * @todo   Implement testgetEvidenceURL().