Revert "testdata: add test for mapgrowth logic"

This reverts commit 73571dd423.

testdata/mapgrowth.go

@@ -1,66 +0,0 @@
-package main
-
-func main() {
-
-	m := make(map[int]int)
-
-	const (
-		Delete = 500
-		N      = Delete * 2
-	)
-
-	for i := 0; i < Delete; i++ {
-		m[i] = i
-	}
-
-	var deleted bool
-	for k, v := range m {
-		if k == 0 {
-			// grow map
-			for i := Delete; i < N; i++ {
-				m[i] = i
-			}
-
-			// delete some elements
-			for i := 0; i < Delete; i++ {
-				delete(m, i)
-			}
-			deleted = true
-			continue
-		}
-
-		// make sure we never see a deleted element later in our iteration
-		if deleted && v < Delete {
-			println("saw deleted element", v)
-		}
-	}
-
-	if len(m) != N-Delete {
-		println("bad length post grow/delete", len(m))
-	}
-
-	seen := make([]bool, 500)
-
-	var mcount int
-	for k, v := range m {
-		if k != v {
-			println("element mismatch", k, v)
-		}
-		if k < Delete {
-			println("saw deleted element post-grow", k)
-		}
-		seen[v-Delete] = true
-		mcount++
-	}
-
-	for _, v := range seen {
-		if !v {
-			println("missing key", v)
-		}
-	}
-
-	if mcount != N-Delete {
-		println("bad number of elements post-grow:", mcount)
-	}
-	println("done")
-}

testdata/mapgrowth.txt

@@ -1 +0,0 @@
-done