Remove the deprecated 'dim' argument of MIP variables

[nathanncohen]

The 'dim' attribute of MIPVariables has been deprecated since Sage 6.2 in
#15489. It was always useless since myvar[a,b] works and is more practical
than myvar[a][b]. I had not noticed that when I implemented it T_T

With this ticket, the problem is solved.

CC: @dimpase

Component: numerical

Author: Nathann Cohen

Branch/Commit: d3c8f90

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/17463

[nathanncohen]

Branch: u/ncohen/17463

[sagetrac-git]

Commit: d3c8f90

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

d3c8f90

Removed 'MIPVariable.dim' attribute deprecated in #15489 on 2013-12-06

[dimpase]

comment:3

LGTM

[nathanncohen]

comment:4

Thanks !

Nathann

[vbraun]

comment:7

I hope you don't expect me to merge "sage-pending" tickets...

[nathanncohen]

comment:8

I do not object to changing the milestone and having it merged tomorrow, if you ask.

Nathann

[vbraun]

comment:9

I'm neither the author nor the reviewer (name missing btw).

[nathanncohen]

Reviewer: Dima Pasechnik

[vbraun]

comment:11

PSA: Once you want the ticket merged you can set a milestone to something else than "sage-pending"

[nathanncohen]

comment:12

PSA: Once you want the ticket merged you can set a milestone to something else than "sage-pending"

Right right. I asked google calendar to send me an email on the 2015-05-06.

Nathann

[vbraun]

comment:13

Just trying to make sure that everybody understands that feature of the merge script since it caused some confusion on another ticket

[nathanncohen]

comment:15

Oh. Thanks :-D

[vbraun]

Changed branch from u/ncohen/17463 to d3c8f90