Revert "ethdb/pebble: cap memory table size as maxMemTableSize-1 (eth…

…ereum#28444)"

This reverts commit cc68033.

ethdb/pebble/pebble.go

@@ -160,15 +160,8 @@ func New(file string, cache int, handles int, namespace string, readonly bool, e
 	// including a frozen memory table and another live one.
 	memTableLimit := 2
 	memTableSize := cache * 1024 * 1024 / 2 / memTableLimit
-
-	// The memory table size is currently capped at maxMemTableSize-1 due to a
-	// known bug in the pebble where maxMemTableSize is not recognized as a
-	// valid size.
-	//
-	// TODO use the maxMemTableSize as the maximum table size once the issue
-	// in pebble is fixed.
-	if memTableSize >= maxMemTableSize {
-		memTableSize = maxMemTableSize - 1
+	if memTableSize > maxMemTableSize {
+		memTableSize = maxMemTableSize
 	}
 	db := &Database{
 		fn:           file,