Change CWT use of GetPrimaryAndSecondary to GetPrimary

This snuck in as part of my previous ConditionalWeakTable changes.  We don't need the secondary here, and it's more expensive to get than just the primary.

Commit migrated from https://github.com/dotnet/coreclr/commit/4a5647ee5c5e04484c7211bcac7249d35e290977

diff --git a/src/coreclr/src/mscorlib/src/System/Runtime/CompilerServices/ConditionalWeakTable.cs b/src/coreclr/src/mscorlib/src/System/Runtime/CompilerServices/ConditionalWeakTable.cs
index 0a1eb15..89e6ad1 100644 (file)
--- a/src/coreclr/src/mscorlib/src/System/Runtime/CompilerServices/ConditionalWeakTable.cs
+++ b/src/coreclr/src/mscorlib/src/System/Runtime/CompilerServices/ConditionalWeakTable.cs
@@ -568,9 +568,7 @@ namespace System.Runtime.CompilerServices
                     DependentHandle depHnd = _entries[entriesIndex].depHnd;
                     if (hashCode != -1 && depHnd.IsAllocated)
                     {
-                        object primary, secondary;
-                        depHnd.GetPrimaryAndSecondary(out primary, out secondary);
-                        if (primary != null)
+                        if (depHnd.GetPrimary() != null)
                         {
                             // Entry is used and has not expired. Link it into the appropriate bucket list.
                             newEntries[newEntriesIndex].HashCode = hashCode;