remove not used spec and not needed execuse

Summary:
This spec has no usage: https://fburl.com/code/lyfrts6e

remove the spec and the REACT_NATIVE_BRIDGING execuse

Reviewed By: kingsleyadio

Differential Revision: D58724042

fbshipit-source-id: 6322c2fd0ba95e7366d00da4d1fcaaf8dbd0d465

Author: Peng Jiang

litho-annotations/src/main/java/com/facebook/litho/annotations/ExcuseMySpec.kt

@@ -51,13 +51,6 @@ enum class Reason {
    */
   SECTION_USED_WITH_OTHER_SECTIONS,
 
-  /**
-   * Used when creating new react native component bridges. currently the implementation only
-   * supports LithoSpec, integrating with KComponents ends up with a lot of rendering issues such as
-   * https://fb.workplace.com/groups/rn.support/permalink/25722856564002949/.
-   */
-  REACT_NATIVE_BRIDGING,
-
   /**
    * Used when Component.Builder is required at call site, e.g. when creating new native template
    * component bridges.