Remove confusing translated string for 'Submit an update'

A student gave feedback about the confusing translation for
the string 'Submit an update' and suggested just always using
'Submit', which makes sense.

Author: ihalaij1

feedback/locale/fi/LC_MESSAGES/django.po

@@ -613,10 +613,6 @@ msgstr "näytä lisää"
 msgid "This feedback has unsaved changes!"
 msgstr "Palautteessa on tallentamattomia muutoksia!"
 
-#: feedback/templates_j2/feedback/_form.html
-msgid "Submit an update"
-msgstr "Lähetä uudestaan"
-
 #: feedback/templates_j2/feedback/_form.html
 msgid "Submit"
 msgstr "Lähetä"

feedback/templates_j2/feedback/_form.html

@@ -78,7 +78,7 @@
 			<div class="btn-toolbar">
 				<input
 					type="submit"
-					value="{% if feedback %}{{ _('Submit an update') }}{% else %}{{ _('Submit') }}{% endif %}"
+					value="{{ _('Submit') }}"
 					class="btn btn-primary aplus-submit">
 				<input
 					type="reset"