tools: remove align-multiline-assignment lint rule

In preparation for stricter indentation linting, remove the
align-multiline-assignment custom rule, as it may conflict with the
ESLint stricter indentation linting.

PR-URL: #14079
Reviewed-By: Refael Ackermann <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>

Author: Trott

.eslintrc.yaml

@@ -167,7 +167,6 @@ rules:
   template-curly-spacing: error
 
   # Custom rules in tools/eslint-rules
-  align-multiline-assignment: error
   assert-throws-arguments: [error, { requireTwo: true }]
   no-unescaped-regexp-dot: error