Remove overrides for orangish and bluish

A bit strange, but these overrides don't seem to be necessary anymore
for both schemes. Iirc I used them because otherwise ST would pick the
colors with reduced alpha value instead, which are used in doc comments.
Perhaps the algorithm for the automatic color selection was changed in
ST4.

Brackets Dark.sublime-color-scheme

@@ -14,10 +14,8 @@
         "red": "#dc322f",
         "red2": "#d44",
         "violet": "#b77fdb",
-        "--orangish": "var(orange)",
         "--yellowish": "#d3cd69",
         "--cyanish": "#6bbeff",
-        "--bluish": "var(blue)",
         "operator_symbol": "var(textcolor)",
         "operator_keyword": "var(blue)",
         "punctuation": "var(textcolor)"

Brackets Light.sublime-color-scheme

@@ -14,10 +14,8 @@
         "red": "#dc322f",
         "red2": "#d44",
         "violet": "#8757ad",
-        "--orangish": "var(orange)",
         "--yellowish": "#e5bb00",
         "--cyanish": "#0083e8",
-        "--bluish": "var(blue)",
         "operator_symbol": "var(textcolor)",
         "operator_keyword": "var(blue)",
         "punctuation": "var(textcolor)"