refactor(#972): remove duplicate-names-in-diff-context lint

Author: volodya-lombrozo

src/main/resources/org/eolang/lints/misc/duplicate-names-in-diff-context.xsl

@@ -41,17 +41,14 @@ public class SourceBench {
      * Benchmark for XMIR scanning.
      * Scans XMIR.
      * @param state State
-     * @todo #555:35min Enable `duplicate-names-in-diff-context` benchmark.
-     *  Currently, its slow, especially for `L` and `XL`-sized sources. Let's optimize it,
-     *  in order to enable this benchmark.
      * @todo #376:60min Enable redundant object in the single XMIR scope benchmarks.
      *  As for now, the lint is too slow, especially on L, XL and XXL-sized XMIRs.
      *  This happens mostly because of multiple XPath `//o` selects in the XSL. Once,
      *  the lint will be optimized, we can enable the lint in the benchmarks.
      */
     @Benchmark
     public final void scansXmir(final BenchmarkState state) {
-        new Source(state.xmir).without("redundant-object", "duplicate-names-in-diff-context")
+        new Source(state.xmir).without("redundant-object")
             .defects();
     }