Remove deprecated goog.net.cookies.MAX_COOKIE_LENGTH constant.
Remove deprecated goog.net.cookies.MAX_COOKIE_LENGTH constant.

Fixes build warnings:
WARNING: javascript/closure/net/cookies.js:380: WARNING - Property MAX_COOKIE_LENGTH never defined on goog.net.Cookies
goog.net.cookies.MAX_COOKIE_LENGTH = goog.net.Cookies.MAX_COOKIE_LENGTH;

RELNOTES: Removes deprecated constant goog.net.cookies.MAX_COOKIE_LENGTH.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=219665287

google/closure-library,google/closure-library,teppeis/closure-library,lucidsoftware/closure-library,google/closure-library,google/closure-library,teppeis/closure-library,google/closure-library,teppeis/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library,teppeis/closure-library