remove redundant changes

src/commonMain/kotlin/dev/inmo/krontab/StringParser.kt

@@ -70,14 +70,14 @@ fun createSimpleScheduler(
             it.getOrNull(5),
             it.getOrNull(6)
         ).forEach {
-            val parsedOffset = parseOffset(it)
-            offsetParsed = offsetParsed ?: parsedOffset
+            val offsetFromString = parseOffset(it)
+            offsetParsed = offsetParsed ?: offsetFromString
             when {
-                parsedOffset == null && yearParsed == null -> {
+                offsetFromString == null && yearParsed == null -> {
                     yearParsed = parseYears(it)
                 }
-                parsedOffset != null && offsetParsed == null -> {
-                    offsetParsed = parsedOffset
+                offsetFromString != null && offsetParsed == null -> {
+                    offsetParsed = offsetFromString
                 }
             }
         }

src/commonMain/kotlin/dev/inmo/krontab/internal/CronDateTimeScheduler.kt

@@ -1,6 +1,6 @@
 package dev.inmo.krontab.internal
 
-import com.soywiz.klock.*
+import com.soywiz.klock.DateTime
 import dev.inmo.krontab.*
 import dev.inmo.krontab.collection.plus