Bug 1414401 - Enable geckodriver on Linux i686 r=ted,whimboo

This patch enables building of geckodriver in CI on Linux i686.

MozReview-Commit-ID: GkdHDJrzh2X

--HG--
extra : rebase_source : ab4588468939358a41d255dea3a01a8542e35a0e

toolkit/moz.configure

@@ -1114,9 +1114,8 @@ option('--enable-geckodriver', help='Enable WebDriver implementation')
          'MOZ_AUTOMATION',
          compile_environment,
          cross_compiling,
-         hazard_analysis,
-         target)
-def geckodriver(enable, automation, compile_env, cross_compile, hazard, target):
+         hazard_analysis)
+def geckodriver(enable, automation, compile_env, cross_compile, hazard):
     """
     geckodriver is implied on supported platforms when MOZ_AUTOMATION
     is set, but we also provide the --enable-geckodriver option for
@@ -1134,8 +1133,7 @@ def geckodriver(enable, automation, compile_env, cross_compile, hazard, target):
         return True
 
     if enable.origin == 'default':
-        linux32 = target.kernel == 'Linux' and target.cpu == 'x86'
-        broken_platforms = cross_compile or linux32 or hazard
+        broken_platforms = cross_compile or hazard
 
         if automation and compile_env and not broken_platforms:
             return True