simplify swagger, EHT hosts landing page now

...va/gov/usgs/earthquake/nshmp/www/SwaggerUIController.java

src/main/resources/application.yml

src/main/resources/swagger/drupal/fonts/FontAwesome.otf

...in/resources/swagger/drupal/fonts/fontawesome-webfont.eot

...in/resources/swagger/drupal/fonts/fontawesome-webfont.svg

...in/resources/swagger/drupal/fonts/fontawesome-webfont.ttf

...n/resources/swagger/drupal/fonts/fontawesome-webfont.woff

.../resources/swagger/drupal/fonts/fontawesome-webfont.woff2

src/main/resources/swagger/drupal/stylesheets/common.css

src/main/resources/swagger/drupal/stylesheets/custom.css

src/main/resources/swagger/favicon.ico

src/main/resources/swagger/index.css

src/main/resources/swagger/index.html

src/main/resources/swagger/index.js

src/main/resources/swagger/usgs-logo.svg

src/main/resources/swagger/uswds/css/uswds.min.css

...ds/fonts/source-sans-pro/sourcesanspro-bold-webfont.woff2

...fonts/source-sans-pro/sourcesanspro-regular-webfont.woff2

src/main/resources/swagger/uswds/img/icon-dot-gov.svg

src/main/resources/swagger/uswds/img/icon-https.svg