Simplify cycle start detection funtions

lib/cycle.js

@@ -177,36 +177,6 @@ export default function config(opts) {
   }
 
 
-  // TODO this also needs a test
-  function maybeSetNewCycleStart(oldCycleDay, newValue) {
-    // if a bleeding value is deleted, we need to check if
-    // there are any following bleeding days and if the
-    // next one of them is now a cycle start
-
-    // in order to get the menses days, the cycle day in question still
-    // has to have a bleeding value, so we get those days first and only
-    // then update the cycle day
-    const mensesDaysAfter = getMensesDaysRightAfter(oldCycleDay)
-    oldCycleDay.bleeding = newValue
-    oldCycleDay.isCycleStart = false
-
-    if (!mensesDaysAfter.length) return
-
-    const nextOne = mensesDaysAfter[mensesDaysAfter.length - 1]
-    if (isMensesStart(nextOne)) {
-      nextOne.isCycleStart = true
-    }
-  }
-
-  function maybeClearOldCycleStartsInThisMenses(cycleDay) {
-    // if we have a new bleeding day, we need to clear the
-    // menses start marker from all following days of this
-    // menses that may have been marked as start before
-    const mensesDaysAfter = getMensesDaysRightAfter(cycleDay)
-    mensesDaysAfter.forEach(day => day.isCycleStart = false)
-  }
-
-
   return {
     getCycleDayNumber,
     getCycleForDay,
@@ -215,8 +185,6 @@ export default function config(opts) {
     getAllCycleLengths,
     getPredictedMenses,
     isMensesStart,
-    getMensesDaysRightAfter,
-    maybeSetNewCycleStart,
-    maybeClearOldCycleStartsInThisMenses
+    getMensesDaysRightAfter
   }
 }