Remove tracking endpoint preconnect hint from development
What does this MR do and why?
This MR removes tracking endpoint preconnect loading hint in development mode, which causes 1-2 seconds delay for bundle fetching.
This is a Chrome bug that happens only in development mode because the host we're connecting to (https://gdk.test) produces ERR_CONNECTION_REFUSED error.
Screenshots or screen recordings
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MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR. 
Edited  by Stanislav Lashmanov