Update tools/clang/unittests/HLSLExec/LongVectors.cpp

Co-authored-by: Damyan Pepper <damyanp@microsoft.com>

Author: alsepkow

tools/clang/unittests/HLSLExec/LongVectors.cpp

@@ -1536,7 +1536,7 @@ class DxilConf_SM69_Vectorized {
     } else {
       D3D12_FEATURE_DATA_D3D12_OPTIONS1 WaveOpts;
       VERIFY_SUCCEEDED(D3DDevice->CheckFeatureSupport(
-          (D3D12_FEATURE)D3D12_FEATURE_D3D12_OPTIONS1, &waveOpts,
+          D3D12_FEATURE_D3D12_OPTIONS1, &waveOpts,
           sizeof(waveOpts)));
 
       WaveSize = waveOpts.WaveLaneCountMin;