SONARHTML-188 Drop deprecated property "sonar.web.file.suffixes" (#260)

Author: yassin-kammoun-sonarsource

sonar-html-plugin/src/main/java/org/sonar/plugins/html/HtmlPlugin.java

@@ -67,7 +67,6 @@ private static List<PropertyDefinition> pluginProperties() {
         .description("List of file suffixes that will be scanned.")
         .category(CATEGORY)
         .defaultValue(HtmlConstants.FILE_EXTENSIONS_DEF_VALUE)
-        .deprecatedKey("sonar.web.file.suffixes")
         .onQualifiers(Qualifiers.PROJECT)
         .multiValues(true)
         .build(),