Remove irrelevant sub-command `czrates`

Conventional curl wrapper -- not desktop-related.

mkit/config.ini

@@ -42,7 +42,6 @@
 
 [files:libexec]
     src/libexec/saturnin-au                 = saturnin-au
-    src/libexec/saturnin-czrates            = saturnin-czrates
     src/libexec/saturnin-clip               = saturnin-clip
     src/libexec/saturnin-dmenu              = saturnin-dmenu
     src/libexec/saturnin-iam                = saturnin-iam

src/libexec/saturnin-czrates

@@ -1,27 +0,0 @@
-#!/bin/bash
-
-. $(ffoom path)
-
-ffoo import pretty
-
-uri='https://www.cnb.cz/en/financial_markets/foreign_exchange_market/exchange_rate_fixing/daily.txt'
-
-get_field() {
-    local wntcur=$1
-    local wntfld=${2:-Rate}
-    local fldn
-    case "$wntfld" in
-        Country|Currency|Amount|Code|Rate) true;;
-        *) usage_is "code Country|Currency|Amount|Code|Rate" ;;
-    esac
-    local date head
-    read date
-    read head
-    IFS='|'; while read Country Currency Amount Code Rate;
-    do
-        test "$wntcur" = "$Code" && echo ${!wntfld}
-    done
-}
-
-curl --insecure --silent "$uri" \
-  | get_field ${1:-USD} Rate