Fix 12 Maintainability, 2 Complexity issues in AutoMod\attachment.js

[codefactor-io]

CodeFactor found multiple issues last seen at af63565:

Unreachable code.

• AutoMod\attachment.js:100
• AutoMod\attachment.js:90
• AutoMod\attachment.js:87
• AutoMod\attachment.js:70
• AutoMod\attachment.js:61
• AutoMod\attachment.js:45
• AutoMod\attachment.js:31
• AutoMod\attachment.js:12

'attEx' is assigned a value but never used.

• AutoMod\attachment.js:149

'client' is defined but never used.

• AutoMod\attachment.js:147
• AutoMod\attachment.js:111
• AutoMod\attachment.js:10

Complex Method

• AutoMod\attachment.js:111
• AutoMod\attachment.js:10-28