Mantis#2291. Thank you kindly, StrawberryFride for a patch that solves:

User server won't start up for a MSSQL grid migrating from a significantly 
older version to current version due to duplication in three of the 
migrations code files. Patch included takes out the duplicated code from 
the three files so a smooth update should happen on start up.

1 files changed, 0 insertions, 15 deletions

diff --git a/OpenSim/Data/MSSQL/Resources/003_UserStore.sql b/OpenSim/Data/MSSQL/Resources/003_UserStore.sql
index c2821e6..cb507c9 100644
--- a/OpenSim/Data/MSSQL/Resources/003_UserStore.sql
+++ b/OpenSim/Data/MSSQL/Resources/003_UserStore.sql
@@ -13,18 +13,3 @@ CREATE NONCLUSTERED INDEX IX_avatarattachments ON dbo.avatarattachments
 
 
 COMMIT
-BEGIN TRANSACTION
-
-CREATE TABLE [avatarattachments] (
-        [UUID] varchar(36) NOT NULL
-        , [attachpoint] int NOT NULL
-        , [item] varchar(36) NOT NULL
-        , [asset] varchar(36) NOT NULL)
-
-CREATE NONCLUSTERED INDEX IX_avatarattachments ON dbo.avatarattachments
-        (
-        UUID
-        ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
-
-
-COMMIT