delete extra routines

mllib-local/src/main/scala/org/apache/spark/ml/linalg/Vectors.scala

@@ -247,14 +247,6 @@ object Vectors {
     }.toSeq)
   }
 
-  /**
-   * Calculate the dot product of two vectors.
-   *
-   * If `size` does not match an [[IllegalArgumentException]] is thrown.
-   */
-  @Since("3.0.0")
-  def dot(v1: Vector, v2: Vector): Double = v1.dot(v2)
-
   /**
    * Creates a vector of all zeros.
    *

mllib-local/src/test/scala/org/apache/spark/ml/linalg/VectorsSuite.scala

@@ -384,27 +384,22 @@ class VectorsSuite extends SparkMLFunSuite {
   test("dot product only supports vectors of same size") {
     val vSize4 = Vectors.dense(arr)
     val vSize1 = Vectors.zeros(1)
-    intercept[IllegalArgumentException]{ Vectors.dot(vSize4, vSize1) }
     intercept[IllegalArgumentException]{ vSize1.dot(vSize4) }
   }
 
   test("dense vector dot product") {
     val dv = Vectors.dense(arr)
-    assert(Vectors.dot(dv, dv) === 0.26)
     assert(dv.dot(dv) === 0.26)
   }
 
   test("sparse vector dot product") {
     val sv = Vectors.sparse(n, indices, values)
-    assert(Vectors.dot(sv, sv) === 0.26)
     assert(sv.dot(sv) === 0.26)
   }
 
   test("mixed sparse and dense vector dot product") {
     val sv = Vectors.sparse(n, indices, values)
     val dv = Vectors.dense(arr)
-    assert(Vectors.dot(sv, dv) === 0.26)
-    assert(Vectors.dot(dv, sv) === 0.26)
     assert(sv.dot(dv) === 0.26)
     assert(dv.dot(sv) === 0.26)
   }

mllib/src/main/scala/org/apache/spark/mllib/linalg/Vectors.scala

@@ -359,14 +359,6 @@ object Vectors {
     }.toSeq)
   }
 
-  /**
-   * Calculate the dot product of two vectors.
-   *
-   * If `size` does not match an [[IllegalArgumentException]] is thrown.
-   */
-  @Since("3.0.0")
-  def dot(v1: Vector, v2: Vector): Double = v1.dot(v2)
-
   /**
    * Creates a vector of all zeros.
    *

mllib/src/test/scala/org/apache/spark/mllib/linalg/VectorsSuite.scala

@@ -514,27 +514,22 @@ class VectorsSuite extends SparkFunSuite with Logging {
   test("dot product only supports vectors of same size") {
     val vSize4 = Vectors.dense(arr)
     val vSize1 = Vectors.zeros(1)
-    intercept[IllegalArgumentException]{ Vectors.dot(vSize4, vSize1) }
     intercept[IllegalArgumentException]{ vSize1.dot(vSize4) }
   }
 
   test("dense vector dot product") {
     val dv = Vectors.dense(arr)
-    assert(Vectors.dot(dv, dv) === 0.26)
     assert(dv.dot(dv) === 0.26)
   }
 
   test("sparse vector dot product") {
     val sv = Vectors.sparse(n, indices, values)
-    assert(Vectors.dot(sv, sv) === 0.26)
     assert(sv.dot(sv) === 0.26)
   }
 
   test("mixed sparse and dense vector dot product") {
     val sv = Vectors.sparse(n, indices, values)
     val dv = Vectors.dense(arr)
-    assert(Vectors.dot(sv, dv) === 0.26)
-    assert(Vectors.dot(dv, sv) === 0.26)
     assert(sv.dot(dv) === 0.26)
     assert(dv.dot(sv) === 0.26)
   }