Remove redundant compose-richtext version reference

Author: EdricChan03

gradle/libs.versions.toml

@@ -13,7 +13,6 @@ androidx-lifecycle = "2.10.0"
 androidx-navigation = "2.9.6"
 androidx-paging = "3.4.0-beta01"
 coil = "3.3.0"
-compose-richtext = "0.20.0"
 dagger = "2.57.2"
 deep-link-dispatch = "6.2.2"
 firebase-bom = "34.7.0"