CLDR-18267 BRS v47: update logKnownIssues

Remove logKnownIssue from the following which were fixed but the test wasn't updated:
- CLDR-17544
- CLDR-15663

Also updated a ticket that was closed:
- CLDR-15663 changed to CLDR-17857

Author: srl295

tools/cldr-code/src/test/java/org/unicode/cldr/unittest/LikelySubtagsTest.java

@@ -350,9 +350,9 @@ public void TestMissingInfoForLanguage() {
             if (englishName == null) {
                 Level covLevel = ccl.getEffectiveCoverageLevel(language);
                 if (covLevel == null || !covLevel.isAtLeast(Level.BASIC)) {
-                    // https://unicode-org.atlassian.net/browse/CLDR-15663
+                    // https://unicode-org.atlassian.net/browse/CLDR-17857
                     if (logKnownIssue(
-                            "CLDR-15663",
+                            "CLDR-17857",
                             "English translation should not be required for sub-basic language name")) {
                         continue; // skip error
                     }

tools/cldr-code/src/test/java/org/unicode/cldr/unittest/TestPaths.java

@@ -122,13 +122,7 @@ public void TestPathHeadersAndValues() {
         CLDRFile englishFile = testInfo.getCldrFactory().make("en", true);
         PathHeader.Factory phf = PathHeader.getFactory(englishFile);
         Status status = new Status();
-        final String exemptLocale = "sv";
-        final String exemptPathIfLocale =
-                "//ldml/dates/calendars/calendar[@type=\"dangi\"]/dateTimeFormats/availableFormats/dateFormatItem[@id=\"yMd\"]";
-
         for (String locale : getLocalesToTest()) {
-            boolean isExemptLocale = locale.equals(exemptLocale);
-
             if (!StandardCodes.isLocaleAtLeastBasic(locale)) {
                 continue;
             }
@@ -138,10 +132,6 @@ public void TestPathHeadersAndValues() {
 
             for (Iterator<String> it = file.iterator(); it.hasNext(); ) {
                 String path = it.next();
-                if (isExemptLocale && path.equals(exemptPathIfLocale)) {
-                    logKnownIssue("CLDR-17544", "Can't reproduce locally");
-                    continue;
-                }
                 if (extraPaths.contains(path)) {
                     checkFullpathValue(path, file, locale, status, true /* extra path */);
                 } else {