Remove duplicate .editorconfig. (#257)

* Remove duplicate .editorconfig
* Update .editorconfig to remove forcing crlf as discussed in #225.

.editorconfig

@@ -5,7 +5,6 @@ root = true
 [*]
 indent_style = space
 indent_size = 4
-end_of_line = crlf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true

src/.editorconfig

@@ -1,10 +0,0 @@
-root = true
-
-[*.{xaml,cpp,h}]
-charset = utf-8-bom
-indent_style = space
-indent_size = 4
-
-[*.{cpp,h}]
-insert_final_newline = true
-trim_trailing_whitespace = true