MT#65069 PBX device labels bugfix

.touch() cannot be called on the label
input because there is no validations
on the field

Change-Id: I238af53e835ba08cec9d941c75f960739f0c75b4
(cherry picked from commit 74b8a4eb73)
(cherry picked from commit be231eca29)

src/components/pages/PbxConfiguration/CscPbxDeviceConfigKeyForm.vue

@@ -75,7 +75,6 @@
             hide-bottom-space
             hide-hint
             :label="$t('Label')"
-            @update:model-value="v$.changes.label.$touch()"
         />
         <csc-list-spinner
             v-if="loading"