Remove java.util references from the common code

libraries/stdlib/src/generated/_Arrays.kt

@@ -9,7 +9,6 @@ package kotlin.collections
 //
 
 import kotlin.comparisons.*
-import java.util.*
 
 /**
  * Returns 1st *element* from the collection.

libraries/stdlib/src/generated/_Collections.kt

@@ -9,7 +9,6 @@ package kotlin.collections
 //
 
 import kotlin.comparisons.*
-import java.util.*
 
 /**
  * Returns 1st *element* from the collection.

libraries/stdlib/src/generated/_Maps.kt

@@ -9,7 +9,6 @@ package kotlin.collections
 //
 
 import kotlin.comparisons.*
-import java.util.*
 
 /**
  * Returns a [List] containing all key-value pairs.

libraries/stdlib/src/generated/_Ranges.kt

@@ -9,7 +9,6 @@ package kotlin.ranges
 //
 
 import kotlin.comparisons.*
-import java.util.*
 
 /**
  * Checks if the specified [value] belongs to this range.

libraries/stdlib/src/generated/_Sequences.kt

@@ -9,7 +9,6 @@ package kotlin.sequences
 //
 
 import kotlin.comparisons.*
-import java.util.*
 
 /**
  * Returns `true` if [element] is found in the sequence.

libraries/stdlib/src/generated/_Sets.kt

@@ -9,7 +9,6 @@ package kotlin.collections
 //
 
 import kotlin.comparisons.*
-import java.util.*
 
 /**
  * Returns a set containing all elements of the original set except the given [element].

libraries/stdlib/src/generated/_Strings.kt

@@ -9,7 +9,6 @@ package kotlin.text
 //
 
 import kotlin.comparisons.*
-import java.util.*
 
 /**
  * Returns a character at the given [index] or throws an [IndexOutOfBoundsException] if the [index] is out of bounds of this char sequence.