Help mark down files cannot find its cmdlet implementation

[dingmeng-xue]

Description

Below errors show up during pipeline checks the mapping between cmdlet and helps. We need to remove those issues. Some are due to inconsistent of upper/lower case.

  Help record Disable-AzAksAddon has no cmdlet.
  Help record Enable-AzAksAddon has no cmdlet.
  Help record Invoke-AzVmPatchAssessment has no cmdlet.
  Help record Disconnect-AzP2sVpnGatewayVpnConnection has no cmdlet.
  Help record Get-AzExpressRouteCrossConnectionARPTable has no cmdlet.
  Help record Get-AzOperationalInsightsLinkTarget has no cmdlet.
  Help record Get-AzOperationalInsightsSavedSearchResult has no cmdlet.
  Help record Get-AzOperationalInsightsSearchResult has no cmdlet.
  Help record DIsable-AzSecurityAdvancedThreatProtection has no cmdlet.
  Help record Disable-AzSqlServerAdvancedThreatProtection has no cmdlet.
  Help record Enable-AzSqlServerAdvancedThreatProtection has no cmdlet.
  Help record Set-AzDataLakeGen2ItemACLObject has no cmdlet.

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