Remove deprecated tsolve function, fix #6484
Remove deprecated zeros([r, c]) and ones([r, c]) syntax, fix #6480
Remove deprecated Integral.transform() inverse option, fix #6479
Remove deprecated option 'simplified' from methods of MatrixBase class, fix #6481
Remove deprecated matrix_add/multiply functions
Remove deprecated DenseMatrix.row(i, f) and .col(i, f) syntax
Remove deprecated Basic.compare_pretty method, fix #4590
Remove deprecated __contains__ method, fix #5488
Remove deprecated statistics module, fix #6485
Remove deprecated separate function, fix #6482
Remove deprecated Plot function, fix #5944
Remove deprecated argument handling in the checkodesol, fix #6483
Merge pull request #7504 from skirpichev/remove-deprecated-since-0.7.2

Remove features, deprecated since 0.7.2