fix: remove arguments from the public events apis which are not required

[1abhishekpandey]

Description

• Removed unused arguments (like userId) from public events APIs (like Track) which are not required and also they are not in parity with v1.
• Removed unused arguments from event DSL class e.g., removed traits field from TrackScope class.
• Fixed indentation.
• Fixed failing test cases.

Fixes # (issue)

Type of change

• 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 not work as expected)
• This change requires a documentation update

Checklist:

• Version upgraded (project, README, gradle, podspec etc)
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added unit tests for the code
• I have made corresponding changes to the documentation

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud