ACPT-1599: Reverting, DeploymentConfig resets & reloads every time new key that wasn't previously set

Reverting ACP2E-2198 so that we prevent DeploymentConfig reseting & reloading every time a new key is loaded that wasn't previously set

Author: JacobBrownAustin

lib/internal/Magento/Framework/App/DeploymentConfig.php

@@ -61,11 +61,6 @@ class DeploymentConfig
      */
     private $readerLoad = [];
 
-    /**
-     * @var array
-     */
-    private $noConfigData = [];
-
     /**
      * Constructor
      *
@@ -99,17 +94,9 @@ public function get($key = null, $defaultValue = null)
         }
         $result = $this->getByKey($key);
         if ($result === null) {
-            if (empty($this->flatData)
-                || !isset($this->flatData[$key]) && !isset($this->noConfigData[$key])
-                || count($this->getAllEnvOverrides())
-            ) {
-                $this->resetData();
+            if (empty($this->flatData) || count($this->getAllEnvOverrides())) {
                 $this->reloadData();
             }
-
-            if (!isset($this->flatData[$key])) {
-                $this->noConfigData[$key] = $key;
-            }
             $result = $this->getByKey($key);
         }
         return $result ?? $defaultValue;