CIF-2865: remove duplicated datalayer clientlib

[buuhuu]

Description

With embedding the datalayer clientlib we duplicate the javascript on the page, causing all cmp:clicks to be tracked twice.

This change removes the embed. Now the datalayer clientlib is only loaded async by the page v3 component we use.

Related Issue

CIF-2865

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes and the overall coverage did not decrease.
• All unit tests pass on CircleCi.
• I ran all tests locally and they pass.

[codecov]

Codecov Report

Merging #301 (4ebfb44) into dev (b56d17f) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##                dev     #301   +/-   ##
=========================================
  Coverage     87.09%   87.09%           
  Complexity       21       21           
=========================================
  Files             1        1           
  Lines            31       31           
  Branches          4        4           
=========================================
  Hits             27       27           
  Misses            2        2           
  Partials          2        2           

Flag	Coverage Δ
unittests	87.09% <ø> (ø)

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