Ignore HOMEBREW_NO_GITHUB_API when testing.

Library/Homebrew/dev-cmd/tests.rb

@@ -39,16 +39,12 @@ module Homebrew
       ENV.delete("HOMEBREW_CASK_OPTS")
       ENV.delete("HOMEBREW_TEMP")
       ENV.delete("HOMEBREW_LINKAGE_CACHE")
+      ENV.delete("HOMEBREW_NO_GITHUB_API")
       ENV["HOMEBREW_NO_ANALYTICS_THIS_RUN"] = "1"
       ENV["HOMEBREW_DEVELOPER"] = "1"
       ENV["HOMEBREW_NO_COMPAT"] = "1" if args.no_compat?
       ENV["HOMEBREW_TEST_GENERIC_OS"] = "1" if args.generic?
-
-      if args.online?
-        ENV["HOMEBREW_TEST_ONLINE"] = "1"
-      else
-        ENV["HOMEBREW_NO_GITHUB_API"] = "1"
-      end
+      ENV["HOMEBREW_TEST_ONLINE"] = "1" if args.online?
 
       if args.coverage?
         ENV["HOMEBREW_TESTS_COVERAGE"] = "1"

Library/Homebrew/test/cask/cli/search_spec.rb

@@ -3,7 +3,6 @@ require_relative "shared_examples/invalid_option"
 describe Hbc::CLI::Search, :cask do
   before do
     allow(Tty).to receive(:width).and_return(0)
-    ENV.delete("HOMEBREW_NO_GITHUB_API")
   end
 
   it_behaves_like "a command that handles invalid options"