refact: remove unused imports

Author: sebthom

src/hx/strings/CharIterator.hx

@@ -7,7 +7,6 @@ package hx.strings;
 
 import haxe.io.Eof;
 import haxe.io.Input;
-import hx.strings.Strings.CharPos;
 import hx.strings.internal.Bits;
 import hx.strings.internal.RingBuffer;
 import hx.strings.internal.TriState;

src/hx/strings/Strings.hx

@@ -2455,7 +2455,7 @@ class Strings {
       if (count == 1)
          return str;
 
-      return cast [ for(i in 0...count) str ].join(separator);
+      return cast [ for(_ in 0...count) str ].join(separator);
    }
 
 

src/hx/strings/collection/OrderedStringSet.hx

@@ -5,8 +5,6 @@
  */
 package hx.strings.collection;
 
-import haxe.ds.StringMap;
-
 import hx.strings.internal.Either2;
 
 /**
@@ -19,7 +17,6 @@ import hx.strings.internal.Either2;
  */
 class OrderedStringSet extends StringSet {
 
-
    inline
    public function new(?initialItems:Either2<StringSet,Array<String>>)
       super(initialItems);

src/hx/strings/spelling/dictionary/EnglishDictionary.hx

@@ -5,8 +5,6 @@
  */
 package hx.strings.spelling.dictionary;
 
-import haxe.Resource;
-import haxe.io.BytesInput;
 import hx.strings.internal.Macros;
 
 /**

src/hx/strings/spelling/dictionary/GermanDictionary.hx

@@ -5,8 +5,6 @@
  */
 package hx.strings.spelling.dictionary;
 
-import haxe.Resource;
-import haxe.io.BytesInput;
 import hx.strings.internal.Macros;
 
 /**