Refactor API, remove/change vis on methods

Author: pathompson1

commonmark-ext-heading-anchor/src/main/java/org/commonmark/ext/heading/anchor/HeadingAnchorExtension.java

@@ -43,7 +43,7 @@ public static Extension create() {
         return create(builder());
     }
 
-    public static Extension create(Builder builder) {
+    private static Extension create(Builder builder) {
         return new HeadingAnchorExtension(builder.defaultId, builder.idPrefix, builder.idSuffix);
     }
 

commonmark-ext-heading-anchor/src/main/java/org/commonmark/ext/heading/anchor/internal/HeadingIdAttributeProvider.java

@@ -20,10 +20,6 @@ private HeadingIdAttributeProvider(String defaultId, String prefix, String suffi
                 .build();
     }
 
-    public static HeadingIdAttributeProvider create() {
-        return create("default", "", "");
-    }
-
     public static HeadingIdAttributeProvider create(String defaultId, String prefix, String suffix) {
         return new HeadingIdAttributeProvider(defaultId, prefix, suffix);
     }