(fix) remove injective chain and exchange connectors

[fengtality]

Before submitting this PR, please make sure:

• Your code builds clean without any errors or warnings
• You are using approved title ("feat/", "fix/", "docs/", "refactor/")

A description of the changes proposed in the pull request:

• Removes Injective chain connector
• Removes Injective and Injective perp clob DEX connectors

Tests performed by the developer:

• Note that I left the Injective library as a CLOB controller file depends on it. Also, the CLOB tests use Injective, so I have commented them out. I will create a bounty later that lets someone clean this up.

Tips for QA testing:

[nikspz]

Test performed:

• Cloned and installed fix branch
• Reviewed no injective_v1 gateway connectors showing in gateway connect, gateway list
• connected injective_v2
• checked balance matched with the helix exchange
• created/started PureMM using injective_v2 successfully
• Manually built docker image