remove global bigEndian = false setting (we cannot do it like that)

std/haxe/io/BytesInput.hx

@@ -55,7 +55,6 @@ class BytesInput extends Input {
 		this.len = len;
 		this.totlen = len;
 		#end
-		bigEndian = false;
 	}
 
 	inline function get_position() : Int {

std/haxe/io/BytesOutput.hx

@@ -39,7 +39,6 @@ class BytesOutput extends Output {
 		#else
 		b = new BytesBuffer();
 		#end
-		bigEndian = false;
 	}
 
 	inline function get_length() : Int {