Reduce log spam. The vertex declaration is already logged

src/core/hle/D3D8/XbVertexShader.cpp

@@ -1182,9 +1182,9 @@ public:
 		// Free the preprocessed declaration copy
 		free(pXboxVertexDeclarationCopy);
 
+		// Record which registers are in the vertex declaration
 		for (size_t i = 0; i < RegVIsPresentInDeclaration.size(); i++) {
 			pCxbxVertexShaderInfo->vRegisterInDeclaration[i] = RegVIsPresentInDeclaration[i];
-			EmuLog(LOG_LEVEL::DEBUG, "Vertex regs used: v%d %d", i, pCxbxVertexShaderInfo->vRegisterInDeclaration[i]);
 		}
 
 		return Result;