chore(ci): remove stale sonar-project.properties reference in comment (#435)

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: nanotaboada

.sonarcloud.properties

@@ -2,12 +2,9 @@
 # SonarCloud Automatic Analysis configuration
 # https://docs.sonarsource.com/sonarqube-cloud/advanced-setup/automatic-analysis/
 #
-# SonarCloud's automatic analysis (GitHub App, no CI workflow) reads THIS file,
-# not sonar-project.properties. Wildcard patterns are NOT supported here, so
-# all exclusion paths must be listed explicitly.
-#
-# sonar-project.properties is kept for documentation and as a fallback if
-# CI-based analysis is ever introduced.
+# SonarCloud's automatic analysis (GitHub App, no CI workflow) reads THIS file.
+# Wildcard patterns are NOT supported here, so all exclusion paths must be
+# listed explicitly.
 # =============================================================================
 
 sonar.sources=src/