Clean Code for bundles/org.eclipse.e4.ui.css.core

[eclipse-platform-bot]

The following cleanups were applied:

• Add final modifier to private fields
• Add missing '@Deprecated' annotations
• Add missing '@Override' annotations
• Add missing '@Override' annotations to implementations of interface methods
• Convert control statement bodies to block
• Make inner classes static where possible
• Remove trailing white spaces on all lines
• Remove unnecessary array creation for varargs
• Remove unnecessary suppress warning tokens
• Remove unused imports
• Remove unused private constructors
• Remove unused private fields
• Remove unused private methods
• Remove unused private types
• Replace deprecated calls with inlined content where possible
• Use pattern matching for instanceof

[github-actions]

Test Results

 3 018 files  + 2 335   3 018 suites  +2 335   2h 13m 39s ⏱️ + 2h 6m 55s
 8 229 tests + 2 457   7 980 ✅ + 2 244  249 💤 +213  0 ❌ ±0 
23 607 runs  +16 405  22 813 ✅ +15 668  794 💤 +737  0 ❌ ±0 

Results for commit bd496e9. ± Comparison against base commit a1eede0.

♻️ This comment has been updated with latest results.