Remove redundant semicolons

Source/Core/VideoCommon/BPFunctions.cpp

@@ -442,4 +442,4 @@ void SetInterlacingMode(const BPCmd& bp)
     break;
   }
 }
-};  // namespace BPFunctions
+}  // namespace BPFunctions

Source/Core/VideoCommon/OnScreenDisplay.h

@@ -30,14 +30,14 @@ constexpr u32 CYAN = 0xFF00FFFF;
 constexpr u32 GREEN = 0xFF00FF00;
 constexpr u32 RED = 0xFFFF0000;
 constexpr u32 YELLOW = 0xFFFFFF30;
-};  // namespace Color
+}  // namespace Color
 
 namespace Duration
 {
 constexpr u32 SHORT = 2000;
 constexpr u32 NORMAL = 5000;
 constexpr u32 VERY_LONG = 10000;
-};  // namespace Duration
+}  // namespace Duration
 
 // On-screen message display (colored yellow by default)
 void AddMessage(std::string message, u32 ms = Duration::SHORT, u32 argb = Color::YELLOW,

Source/Core/VideoCommon/VertexLoaderManager.h

@@ -18,7 +18,7 @@ struct PortableVertexDeclaration;
 namespace OpcodeDecoder
 {
 enum class Primitive : u8;
-};
+}
 
 namespace VertexLoaderManager
 {

Source/Core/VideoCommon/VertexManagerBase.h

@@ -45,7 +45,7 @@ enum TexelBufferFormat : u32
 namespace OpcodeDecoder
 {
 enum class Primitive : u8;
-};
+}
 
 class VertexManagerBase
 {