Move to new ThermalSubsystem

Remove VUE_APP_FAN_DATA_FROM_THERMAL_SUBSYSTEM. Assume any Redfish
implementation we are using has the new ThermalSubsystem. bmcweb, the
only webserver, webui-vue supports today, enabled this by default at
https://gerrit.openbmc.org/c/openbmc/bmcweb/+/69228

ThermalSubsystem, PowerSubsystem has been out since 2020.4, so it is
reasonable to assume it is there in any modern Redfish
implementation.

Tested: Nabil tested and verified this worked.

Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
Change-Id: I4952daf30f9b654234dd0e838adebc38cc8c380f
diff --git a/.env.intel b/.env.intel
index c7dea36..382e7fb 100644
--- a/.env.intel
+++ b/.env.intel
@@ -8,8 +8,7 @@
 VUE_APP_VIRTUAL_MEDIA_LIST_ENABLED="true"
 VUE_APP_EVENT_LOGS_DELETE_BUTTON_DISABLED="true"
 VUE_APP_EVENT_LOGS_TOGGLE_BUTTON_DISABLED="true"
-VUE_APP_FAN_DATA_FROM_THERMAL_SUBSYSTEM="true"
 CUSTOM_STYLES="true"
 CUSTOM_APP_NAV="true"
 CUSTOM_STORE="true"
-CUSTOM_ROUTER="true"
\ No newline at end of file
+CUSTOM_ROUTER="true"