chore: remove the unused myEP API settings from the theme

The app config JSON carried "myEpApiBaseUrl" from the TypoScript setting
myEpApiEndpointUrl, which only the alvac and cllt sys_template records set:
the other sites rendered the unresolved "{$plugin.tx_eptheme.settings...}"
into the page. No JavaScript reads the key (only paCode and externalDomains
are used), and the MyE&P API client takes its URL, credentials and timeout
from the ep_products extension configuration, so the theme's
myEpApiEndpointUrl, myEpApiToken and myEpApiTimeout settings had no reader.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/ep_theme/Configuration/TypoScript/setup.typoscript

@@ -76,9 +76,6 @@ plugin.tx_eptheme {
         globalConceptCode = {$plugin.tx_eptheme.settings.globalConceptCode}
         travelAlertPageUid = {$plugin.tx_eptheme.settings.travelAlertPageUid}
         myEpPageUid = {$plugin.tx_eptheme.settings.myEpPageUid}
-        myEpApiEndpointUrl = {$plugin.tx_eptheme.settings.myEpApiEndpointUrl}
-        myEpApiToken = {$plugin.tx_eptheme.settings.myEpApiToken}
-        myEpApiTimeout = {$plugin.tx_eptheme.settings.myEpApiTimeout}
         facebookViewContentValues {
             productUid = {$plugin.tx_eptheme.settings.facebookViewContentProductUid}
             nameInternal = {$plugin.tx_eptheme.settings.facebookViewContentNameInternal}