diff --git a/mysql/migration/1.0.0-1.1.0-RC1.sql b/mysql/migration/1.0.0-1.1.0-RC1.sql
deleted file mode 100644
index 7939c73da01..00000000000
--- a/mysql/migration/1.0.0-1.1.0-RC1.sql
+++ /dev/null
@@ -1,71 +0,0 @@
-
---
--- Mise à jour de la version 1.0.0 à 1.1.0-RC1
---
-
-drop table if exists llx_service;
-
-alter table llx_propaldet modify qty real;
-alter table llx_facturedet modify qty real;
-
-alter table llx_propaldet add remise_percent real default 0;
-alter table llx_propaldet add remise real default 0;
-alter table llx_propaldet add subprice real default 0;
-
-alter table llx_facturedet add remise_percent real default 0;
-alter table llx_facturedet add remise real default 0;
-alter table llx_facturedet add subprice real default 0;
-
-alter table llx_facturedet modify fk_product integer NOT NULL default 0;
-
-create table llx_product_fournisseur
-(
-  rowid           integer AUTO_INCREMENT PRIMARY KEY,
-  datec           datetime,
-  tms             timestamp,
-  fk_product      integer,
-  fk_soc          integer,
-  ref_fourn       varchar(30),
-  fk_user_author  integer,
-
-  key(fk_product),
-  key(fk_soc)
-);
-
-create table llx_facture_rec
-(
-  rowid              integer AUTO_INCREMENT PRIMARY KEY,
-  titre              varchar(50) NOT NULL,
-  fk_soc             integer NOT NULL,
-  datec              datetime,  -- date de creation
-
-  amount             real     default 0 NOT NULL,
-  remise             real     default 0,
-  remise_percent     real     default 0,
-  tva                real     default 0,
-  total              real     default 0,
-  total_ttc          real     default 0,
-
-  fk_user_author     integer,   -- createur
-  fk_projet          integer,   -- projet auquel est associé la facture
-  fk_cond_reglement  integer,   -- condition de reglement
-
-  note               text,
-
-  INDEX fksoc (fk_soc)
-);
-
-
-create table llx_facturedet_rec
-(
-  rowid           integer AUTO_INCREMENT PRIMARY KEY,
-  fk_facture      integer NOT NULL,
-  fk_product      integer,
-  description     text,
-  tva_taux       real default 19.6, -- taux tva
-  qty		 real,              -- quantité
-  remise_percent real default 0,    -- pourcentage de remise
-  remise         real default 0,    -- montant de la remise
-  subprice       real,              -- prix avant remise
-  price          real               -- prix final
-);
diff --git a/mysql/migration/1.1.0-RC1-1.1.0-RC2.sql b/mysql/migration/1.1.0-RC1-1.1.0-RC2.sql
deleted file mode 100644
index 23c1ada994c..00000000000
--- a/mysql/migration/1.1.0-RC1-1.1.0-RC2.sql
+++ /dev/null
@@ -1,24 +0,0 @@
-
---
--- Mise à jour de la version 1.1.0-RC1 à 1.1.0-RC2
---
-
-delete from llx_boxes_def;
-
-delete from llx_boxes;
-
-update llx_facturedet set subprice = price where remise_percent = 0 ;
-
-drop table if exists llx_entrepot;
-drop table if exists llx_product_stock;
-drop table if exists llx_stock;
-drop table if exists llx_stock_mouvement;
-
-create table llx_bank_url
-(
-  rowid           integer AUTO_INCREMENT PRIMARY KEY,
-  fk_bank         integer,
-  url_id          integer,
-  url             varchar(255),
-  label           varchar(255)
-);
diff --git a/mysql/migration/1.1.0-RC2-1.1.0.sql b/mysql/migration/1.1.0-RC2-1.1.0.sql
deleted file mode 100644
index 10d6d2793b9..00000000000
--- a/mysql/migration/1.1.0-RC2-1.1.0.sql
+++ /dev/null
@@ -1,12 +0,0 @@
-
---
--- Mise à jour de la version 1.1.0-RC2 à 1.1.0
---
-
-insert into llx_const(name, value, type, note) values ('MAIN_MONNAIE','euros','chaine','Monnaie');
-
-drop table if exists llx_entrepot;
-drop table if exists llx_product_stock;
-drop table if exists llx_stock;
-drop table if exists llx_stock_mouvement;
-