[LIBMOBILE-149] Fixed double device payload

[migs647]

What does this PR do?
Fixes an issue where device was in the payload twice.

Where should the reviewer start?
Look at version 4.0.4 vs this PR. 4.0.4 contained the issue, 4.0.3 did not. Compare SEGUtil

How should this be manually tested?
Run to see the payload, verify device isn't doubled up.

Any background context you want to provide?

What are the relevant tickets?
LIBMOBILE-149

Screenshots or screencasts (if UI/UX change)

Questions:

• Does the docs need an update?
• Are there any security concerns?
• Do we need to update engineering / success?

[codecov-commenter]

Codecov Report

Merging #931 into master will decrease coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #931      +/-   ##
==========================================
- Coverage   86.13%   86.00%   -0.13%     
==========================================
  Files          57       57              
  Lines        3360     3365       +5     
==========================================
  Hits         2894     2894              
- Misses        466      471       +5