Remove unused local (#40967)

issue dotnet#30457
remove unused local variable dwErrorCode at line 248

diff --git a/src/libraries/System.Security.Cryptography.X509Certificates/src/Internal/Cryptography/Pal.Windows/CertificatePal.PrivateKey.cs b/src/libraries/System.Security.Cryptography.X509Certificates/src/Internal/Cryptography/Pal.Windows/CertificatePal.PrivateKey.cs
index fef4999..82b0f0f 100644 (file)
--- a/src/libraries/System.Security.Cryptography.X509Certificates/src/Internal/Cryptography/Pal.Windows/CertificatePal.PrivateKey.cs
+++ b/src/libraries/System.Security.Cryptography.X509Certificates/src/Internal/Cryptography/Pal.Windows/CertificatePal.PrivateKey.cs
@@ -245,7 +245,6 @@ namespace Internal.Cryptography.Pal
                     out keySpec,
                     out freeKey))
                 {
-                    int dwErrorCode = Marshal.GetLastWin32Error();
 
                     // The documentation for CryptAcquireCertificatePrivateKey says that freeKey
                     // should already be false if "key acquisition fails", and it can be presumed