Revert "add pending status"

This reverts commit 7ccf173.

Sources/WalletStorage/Enumerations.swift

@@ -47,9 +47,9 @@ public enum PrivateKeyType: String {
 	case secureEnclaveP256 = "sep2"
 }
 
+
 /// document status
 public enum DocumentStatus: String {
 	case issued
 	case deferred
-	case pending
 }