Remove undeeded checks in bookmark.zsh

bookmark.zsh

@@ -36,7 +36,7 @@ function bmadd {
         local reply
         read -q 'reply?Overwrite? [y/N] '
         printf '\n'
-        [[ "${reply}" =~ '[yY]([eE][sS])?' ]] || return 1
+        [[ "${reply}" =~ '[yY]' ]] || return 1
     fi
     ln -nfs "${real_path}" "${ZSH_BOOKMARK_DIR}/${bm_name}"
     echo "Created bookmark '${bm_name}'"
@@ -49,7 +49,7 @@ function bmrm {
     local reply
     read -q 'reply?Really delete? [y/N] '
     printf '\n'
-    [[ "${reply}" =~ '[yY]([eE][sS])?' ]] || return 1
+    [[ "${reply}" =~ '[yY]' ]] || return 1
     rm "${ZSH_BOOKMARK_DIR}/${1}"
     echo "Deleted bookmark '${1}'"
 }