There's only one solarized theme

CodeMirror depends on some special config to make both solarized light
and solarized dark work. Gerrit doesn't support that and they are both
broken.

Consolidate them into a single solarized theme will at least make
solarized-light work.

This (partially) fixes Bug 4267.

Change-Id: Ia577147950a566ed003d0338b57dfba1696ac7f6

gerrit-extension-api/src/main/java/com/google/gerrit/extensions/client/Theme.java

@@ -25,7 +25,7 @@ public enum Theme {
   NEAT,
   NEO,
   PARAISO_LIGHT,
-  SOLARIZED_LIGHT,
+  SOLARIZED,
   TTCN,
   XQ_LIGHT,
   YETI,
@@ -56,7 +56,6 @@ public enum Theme {
   RAILSCASTS,
   RUBYBLUE,
   SETI,
-  SOLARIZED_DARK,
   THE_MATRIX,
   TOMORROW_NIGHT_BRIGHT,
   TOMORROW_NIGHT_EIGHTIES,
@@ -92,7 +91,6 @@ public enum Theme {
       case RAILSCASTS:
       case RUBYBLUE:
       case SETI:
-      case SOLARIZED_DARK:
       case THE_MATRIX:
       case TOMORROW_NIGHT_BRIGHT:
       case TOMORROW_NIGHT_EIGHTIES:
@@ -110,7 +108,7 @@ public enum Theme {
       case NEAT:
       case NEO:
       case PARAISO_LIGHT:
-      case SOLARIZED_LIGHT:
+      case SOLARIZED:
       case TTCN:
       case XQ_LIGHT:
       case YETI: