chore(*): removing leftover dev comment (#208)

Author: ChronosSF

docs/xplat/src/content/en/components/grids/_shared/collapsible-column-groups.mdx

@@ -24,10 +24,6 @@ The {ProductName} Collapsible Column Groups feature in {Platform} {ComponentTitl
 
 <Sample src="/{ComponentSample}/column-collapsible-groups" height={600} alt="{Platform} {ComponentTitle} Collapsible Column Groups Overview Example" />
 
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-Ask why bazork grid url a re lik this - https://staging.infragistics.com/blazor-apis-new/blazor/IgniteUI.Blazor/25.1.x/classes/IgbGrid#UpdateCell(Object,%20Object,%20String)
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 ## Setup
 
 To get started with the <ApiLink pkg="grids" type="{ComponentName}" prefixed={false} /> and the **Collapsible multi-column headers** feature, first you need to install {ProductName} by typing the following command: