remove hacky old MicButton stuff

Source/Core/Core/Src/HW/SI_DeviceGCController.cpp

@@ -239,8 +239,6 @@ bool CSIDevice_GCController::GetData(u32& _Hi, u32& _Low)
 		}
 	}
 
-	SetMic(PadStatus.MicButton); // This is dumb and should not be here
-
 	return true;
 }
 

Source/Core/Core/Src/Movie.cpp

@@ -483,10 +483,8 @@ void PlayController(SPADStatus *PadStatus, int controllerID)
 
 	// dtm files don't save the mic button or error bit. not sure if they're actually
 	// used, but better safe than sorry
-	bool m = PadStatus->MicButton;
 	signed char e = PadStatus->err;
 	memset(PadStatus, 0, sizeof(SPADStatus));
-	PadStatus->MicButton = m;
 	PadStatus->err = e;
 	
 	memcpy(&g_padState, &(tmpInput[inputOffset]), 8);

Source/Core/InputCommon/Src/GCPadStatus.h

@@ -51,7 +51,6 @@ typedef struct
 	unsigned char	triggerRight;           // 0 <= triggerRight <= 255
 	unsigned char	analogA;                // 0 <= analogA      <= 255
 	unsigned char	analogB;                // 0 <= analogB      <= 255
-	bool			MicButton;				// HAX
 	signed char		err;                    // one of PAD_ERR_* number
 } SPADStatus;