UI: Remove unused dependency.

ui-ngx/package.json

@@ -89,7 +89,6 @@
     "tinymce": "~6.8.5",
     "tooltipster": "^4.2.8",
     "tslib": "^2.7.0",
-    "tv4": "^1.3.0",
     "typeface-roboto": "^1.1.13",
     "zone.js": "~0.14.10"
   },

ui-ngx/yarn.lock

@@ -9234,11 +9234,6 @@ tuf-js@^2.2.1:
     debug "^4.3.4"
     make-fetch-happen "^13.0.1"
 
-tv4@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/tv4/-/tv4-1.3.0.tgz#d020c846fadd50c855abb25ebaecc68fc10f7963"
-  integrity sha512-afizzfpJgvPr+eDkREK4MxJ/+r8nEEHcmitwgnPUqpaP+FpwQyadnxNoSACbgc/b1LsZYtODGoPiFxQrgJgjvw==
-
 type-check@^0.4.0, type-check@~0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.4.0.tgz#07b8203bfa7056c0657050e3ccd2c37730bab8f1"