Remove duplicate settings from root .editorconfig

.editorconfig

@@ -2,42 +2,6 @@
 # editorconfig.org
 root = true
 
-[*.cs]
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 4
-
-# Sort using and Import directives with System.* appearing first
-dotnet_sort_system_directives_first = true
-
-# Avoid "this." and "Me." if not necessary
-dotnet_style_qualification_for_field = false:refactoring
-dotnet_style_qualification_for_property = false:refactoring
-dotnet_style_qualification_for_method = false:refactoring
-dotnet_style_qualification_for_event = false:refactoring
-
-# Indentation preferences
-csharp_indent_block_contents = true
-csharp_indent_braces = false
-csharp_indent_case_contents = true
-csharp_indent_case_contents_when_block = true
-csharp_indent_switch_labels = true
-csharp_indent_labels = flush_left
-
-dotnet_style_qualification_for_field = false:suggestion
-dotnet_style_qualification_for_property = false:suggestion
-dotnet_style_qualification_for_method = false:suggestion
-dotnet_style_qualification_for_event = false:suggestion
-dotnet_naming_style.instance_field_style.capitalization = camel_case
-dotnet_naming_style.instance_field_style.required_prefix = _
-
-# Prefer "var" everywhere
-csharp_style_var_for_built_in_types = true:suggestion
-csharp_style_var_when_type_is_apparent = true:suggestion
-csharp_style_var_elsewhere = true:suggestion
-
 [*.{js,html,js,hbs,less,css}]
 charset = utf-8
 trim_trailing_whitespace = true