Remove unused forward declaration

src/commands/authenticatepivcardapplicationcommand.h

@@ -10,11 +10,6 @@
 
 #include "cardcommand.h"
 
-namespace GpgME
-{
-class Error;
-}
-
 namespace Kleo
 {
 namespace Commands

src/commands/changepincommand.h

@@ -10,11 +10,6 @@
 
 #include "cardcommand.h"
 
-namespace GpgME
-{
-class Error;
-}
-
 namespace Kleo
 {
 namespace Commands

src/commands/pivgeneratecardkeycommand.h

@@ -10,11 +10,6 @@
 
 #include "cardcommand.h"
 
-namespace GpgME
-{
-class Error;
-}
-
 namespace Kleo
 {
 namespace Commands

src/commands/setpivcardapplicationadministrationkeycommand.h

@@ -10,11 +10,6 @@
 
 #include "cardcommand.h"
 
-namespace GpgME
-{
-class Error;
-}
-
 namespace Kleo
 {
 namespace Commands

src/view/anchorcache_p.h

@@ -14,7 +14,6 @@
 
 #include <vector>
 
-class QLabel;
 class QString;
 
 struct AnchorData {

src/view/nullpinwidget.h

@@ -11,11 +11,6 @@
 
 class QPushButton;
 
-namespace GpgME
-{
-    class Error;
-} // namespace GpgME
-
 namespace Kleo
 {
 

src/view/pivcardwidget.h

@@ -13,7 +13,6 @@
 
 #include <gpgme++/error.h>
 
-class QGridLayout;
 class QLabel;
 class QPushButton;