Remove xmldoc for non-existing parameter "kind"

Also refactor for SonarCloud complaints

Ical.Net/CalendarComponents/UniqueComponent.cs

@@ -45,8 +45,6 @@ private void EnsureProperties()
         // See https://sourceforge.net/projects/dday-ical/forums/forum/656447/topic/3754354
         if (DtStamp == null)
         {
-            // icalendar RFC doesn't care about sub-second time resolution, so shave off everything smaller than seconds.
-            var utcNow = DateTime.UtcNow.Truncate(TimeSpan.FromSeconds(1));
             DtStamp = CalDateTime.UtcNow;
         }
     }

Ical.Net/DataTypes/CalDateTime.cs

@@ -137,7 +137,6 @@ public CalDateTime(int year, int month, int day, string? tzId = null)
     /// <summary>
     /// Creates a new instance of the <see cref="CalDateTime"/> class using the specified timezone.
     /// </summary>
-    /// <param name="kind">If <see langword="null"/>, <see cref="DateTimeKind.Unspecified"/> is used.</param>
     /// <param name="tzId">The specified value will determine the <see cref="DateTime.Kind"/> property.
     /// If the timezone specified is UTC, the underlying <see cref="DateTime.Kind"/> will be
     /// <see cref="DateTimeKind.Utc"/>. If a non-UTC timezone or no timezone is specified, the underlying
@@ -400,6 +399,7 @@ public string? TzId
                 return;
             }
 
+            _tzId = value;
             Initialize(_dateOnly, HasTime ? _timeOnly : null, value);
         }
     }
@@ -694,7 +694,7 @@ public string ToString(string? format, IFormatProvider? formatProvider)
             return $"{dateTimeOffset.TimeOfDay.ToString(format, formatProvider)} {_tzId}";
         }
 
-        if (HasTime && HasDate)
+        if (HasTime)
         {
             return $"{dateTimeOffset.ToString(format, formatProvider)} {_tzId}";
         }

Ical.Net/Evaluation/RecurrencePatternEvaluator.cs

@@ -14,7 +14,7 @@ namespace Ical.Net.Evaluation;
 
 public class RecurrencePatternEvaluator : Evaluator
 {
-    private const int _maxIncrementCount = 1000;
+    private const int MaxIncrementCount = 1000;
 
     protected RecurrencePattern Pattern { get; set; }
 
@@ -284,7 +284,7 @@ private HashSet<DateTime> GetDates(IDateTime seed, DateTime periodStart, DateTim
             else
             {
                 noCandidateIncrementCount++;
-                if (_maxIncrementCount > 0 && noCandidateIncrementCount > _maxIncrementCount)
+                if (noCandidateIncrementCount > MaxIncrementCount)
                 {
                     break;
                 }