Revert "Add "thanks" and "thank you" to "pray" emoji (#24090)" (#24969)

This reverts commit 6abaf04a95.

webapp/channels/build/emoji/additional_shortnames.json

@@ -2200,11 +2200,6 @@
     "om_symbol":[
         "om"
     ],
-    "pray": [
-        "thanks",
-        "thank you",
-        "thank_you"
-    ],
     "racing_motorcycle":[
         "motorcycle"
     ],