Correct segfault in WvCdmRequestLicenseTest.UsageRemoveSecureStopTest

[ Merge of http://go/wvgerrit/46622 ]

Secure stop API related changes introduced in b/69674645 caused
segfaults on taimen/walleye but not other devices due to a difference
in OEMCrypto version.

Bug: 77294890
Test: WV unit/integration tests on sailfish and walleye
Change-Id: I8523ef283334d7d32d180e902072fe1dd6e665c1

libwvdrmengine/cdm/core/src/cdm_engine.cpp

@@ -1315,8 +1315,7 @@ CdmResponseType CdmEngine::RemoveUsageInfo(
 
       switch (usage_session_->get_usage_support_type()) {
         case kUsageEntrySupport: {
-          status = usage_session_->DeleteUsageEntry(
-              usage_data[0].usage_entry_number);
+          status = usage_session_->DeleteUsageEntry(usage_entry_number);
 
           if (!handle.DeleteUsageInfo(
                 DeviceFiles::GetUsageInfoFileName(app_id),