WEB-763 : [Android] Remove functionality to solicit Play Store Reviews

[hadia]

📲 What

Remove functionality to solicit Play Store Reviews

🤔 Why

The android app no longer prompts users to provide a play store review.

🛠 How

Hide review app dialog behind feature flag android_hide_app_rating_dialog

👀 See

• It cannot be tested on staging or other app build different from the release.

📋 QA

• Nothing to check until the App is released/on internal test tracks

Story 📖

WEB-763

[codecov]

Codecov Report

Merging #1692 (5ddc420) into master (ceab1bc) will not change coverage.
The diff coverage is 0.00%.

@@          Coverage Diff           @@
##           master   #1692   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files         358     358           
  Lines       17928   17930    +2     
  Branches     2146    2147    +1     
======================================
- Misses      17928   17930    +2     

Impacted Files	Coverage Δ
...a/com/kickstarter/libs/models/OptimizelyFeature.kt	0.00% <0.00%> (ø)
...java/com/kickstarter/viewmodels/ThanksViewModel.kt	0.00% <0.00%> (ø)

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