[Nearby] Change default_for_enterprise_users to False

This is Nearby Share launch bug where the discussion for this change
happened: https://crbug.com/1071222

Change-Id: I2c15ad2377016b9c9bd5001f7549c1be45dc67e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2512548
Commit-Queue: James Vecore <vecore@google.com>
Auto-Submit: James Vecore <vecore@google.com>
Reviewed-by: Pavol Marko <pmarko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#823586}

components/policy/resources/policy_templates.json

@@ -16354,7 +16354,7 @@
         'per_profile': True,
       },
       'example_value': True,
-      'default_for_enterprise_users': True,
+      'default_for_enterprise_users': False,
       'id': 761,
       'caption': '''Allow Nearby Share to be enabled.''',
       'tags': ['local-data-access', 'google-sharing'],
@@ -16362,7 +16362,7 @@
 
       If this setting is disabled, users will not be allowed to opt in to Nearby Share.
 
-      If this policy is left not set, the default is allowed for both enterprise-managed users and non-managed users.''',
+      If this policy is left not set, the default is not allowed for enterprise-managed users and allowed for non-managed users.''',
     },
     {
       'name': 'BrowserNetworkTimeQueriesEnabled',