Limit both divisible & indivisible asset quantites to 1e10 (with 8dp) to fit into 8byte long

src/main/java/org/qortal/asset/Asset.java

@@ -25,8 +25,7 @@ public class Asset {
 	public static final int MAX_DESCRIPTION_SIZE = 4000;
 	public static final int MAX_DATA_SIZE = 400000;
 
-	public static final long MAX_DIVISIBLE_QUANTITY = 10_000_000_000L; // but also to 8 decimal places
-	public static final long MAX_INDIVISIBLE_QUANTITY = 1_000_000_000_000_000_000L;
+	public static final long MAX_QUANTITY = 10_000_000_000L; // but also to 8 decimal places
 
 	// Properties
 	private Repository repository;

src/main/java/org/qortal/transaction/IssueAssetTransaction.java

@@ -95,9 +95,8 @@ public class IssueAssetTransaction extends Transaction {
 		if (assetDescriptionlength < 1 || assetDescriptionlength > Asset.MAX_DESCRIPTION_SIZE)
 			return ValidationResult.INVALID_DESCRIPTION_LENGTH;
 
-		// Check quantity - either 10 billion or if that's not enough: a billion billion!
-		long maxQuantity = issueAssetTransactionData.getIsDivisible() ? Asset.MAX_DIVISIBLE_QUANTITY : Asset.MAX_INDIVISIBLE_QUANTITY;
-		if (issueAssetTransactionData.getQuantity() < 1 || issueAssetTransactionData.getQuantity() > maxQuantity)
+		// Check quantity
+		if (issueAssetTransactionData.getQuantity() < 1 || issueAssetTransactionData.getQuantity() > Asset.MAX_QUANTITY)
 			return ValidationResult.INVALID_QUANTITY;
 
 		// Check fee is positive