remove experimental treat-skcolor-as-srgb flag

tools/skiaserve/urlhandlers/SRGBModeHandler.cpp

-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "UrlHandler.h"
-
-#include "microhttpd.h"
-#include "../Request.h"
-#include "../Response.h"
-
-using namespace Response;
-
-bool SRGBModeHandler::canHandle(const char* method, const char* url) {
-    static const char* kBasePath = "/srgbMode/";
-    return 0 == strcmp(method, MHD_HTTP_METHOD_POST) &&
-           0 == strncmp(url, kBasePath, strlen(kBasePath));
-}
-
-int SRGBModeHandler::handle(Request* request, MHD_Connection* connection,
-                             const char* url, const char* method,
-                             const char* upload_data, size_t* upload_data_size) {
-    SkTArray<SkString> commands;
-    SkStrSplit(url, "/", &commands);
-
-    if (commands.count() != 2) {
-        return MHD_NO;
-    }
-
-    int enable;
-    if (1 != sscanf(commands[1].c_str(), "%d", &enable)) {
-        return MHD_NO;
-    }
-
-    bool success = request->setSRGBMode(SkToBool(enable));
-    if (!success) {
-        return SendError(connection, "Unable to set requested mode");
-    }
-    return SendOK(connection);
-}