`convert_test`: Delete obsolete condition around ASSERT_EQ in TestWithMultipleFormatsHelper

The `if (actual != expected)` makes the `ASSERT_EQ(actual, expected)` trigger only when the assertion fails. However, a successful `ASSERT_EQ` takes a negligible amount of time, which means the `if` is useless and only makes the test harder to read.

PiperOrigin-RevId: 632487285
Change-Id: I1f78136cf4895295c88a5ff3e0bcdce6b08c1d0b

absl/strings/internal/str_format/convert_test.cc

@@ -844,15 +844,13 @@ void TestWithMultipleFormatsHelper(Floating tested_float) {
         // Apple formats NaN differently (+nan) vs. (nan)
         if (std::isnan(tested_float)) continue;
 #endif
-        if (string_printf_result != str_format_result) {
-          // We use ASSERT_EQ here because failures are usually correlated and a
-          // bug would print way too many failed expectations causing the test
-          // to time out.
-          ASSERT_EQ(string_printf_result, str_format_result)
-              << fmt_str << " " << StrPrint("%.18g", tested_float) << " "
-              << StrPrint("%a", tested_float) << " "
-              << StrPrint("%.50f", tested_float);
-        }
+        // We use ASSERT_EQ here because failures are usually correlated and a
+        // bug would print way too many failed expectations causing the test
+        // to time out.
+        ASSERT_EQ(string_printf_result, str_format_result)
+            << fmt_str << " " << StrPrint("%.18g", tested_float) << " "
+            << StrPrint("%a", tested_float) << " "
+            << StrPrint("%.50f", tested_float);
     }
   }
 }