tools: consolidate and simplify .editorconfig deps section

Author: watilde

.editorconfig

@@ -16,12 +16,13 @@ end_of_line = crlf
 indent_size = 8
 indent_style = tab
 
-[{deps}/**]
+[deps/**]
 charset = unset
 end_of_line = unset
 indent_size = unset
 indent_style = unset
+insert_final_newline = unset
 trim_trailing_whitespace = unset
 
-[{test/fixtures,deps,tools/eslint/node_modules,tools/gyp,tools/icu,tools/msvs}/**]
+[{test/fixtures,tools/eslint/node_modules,tools/gyp,tools/icu,tools/msvs}/**]
 insert_final_newline = false