refactor(log): Remove redundant debug log handling

Debug-level logging is handled by the central logging steering function. Remove redundant code in backend plaint-text logging function.

cfddns.sh

@@ -120,13 +120,9 @@ writePlainTextLog() {
     return
   fi
 
-  PT_LOG_LEVEL="$(standardizeLogLevels "$2")"
-
-  ([ "$logDebug" -eq 0 ] && [ "$PT_LOG_LEVEL" = "DEBUG" ]) && return
-
   printf "%s %s %s[%s]: [%s] [%s] %s (%s:%s)\n" \
     "$(getTimeStamp)" "$(getHostname)" "$LOG_PROGRAM_NAME" "$$" \
-    "$PT_LOG_LEVEL" "$(uppercase "$3")" "$1" "${4:-UNSPECIFIED}" "${5:-0}" \
+    "$(standardizeLogLevels "$2")" "$(uppercase "$3")" "$1" "${4:-UNSPECIFIED}" "${5:-0}" \
     >>"$logFile"
 }