remove unused imports

Author: vneiger

src/sage/libs/linbox/fflas.pxd

@@ -83,7 +83,6 @@ cdef extern from "fflas-ffpack/fflas-ffpack.h" namespace "FFLAS":
 cdef extern from "fflas-ffpack/fflas-ffpack.h" namespace "FFPACK":
     ctypedef enum FFPACK_LU_TAG:
         FfpackTileRecursive
-        FfpackSlabRecursive
 
     void RankProfileFromLU (size_t* P, size_t N, size_t R,
                             size_t* rkprofile, FFPACK_LU_TAG LuTag)
@@ -92,8 +91,6 @@ cdef extern from "fflas-ffpack/fflas-ffpack.h" namespace "FFPACK":
 
     void MathPerm2LAPACKPerm (size_t * LapackP, size_t * MathP, size_t N)
 
-    void LAPACKPerm2MathPerm (size_t * MathP, size_t * LapackP, size_t N)
-
     # double
     bint IsSingular (Modular_double F,
                      size_t nrows, size_t ncols, Modular_double.Element* A,

src/sage/matrix/matrix_modn_dense_template.pxi

@@ -94,8 +94,8 @@ from cysignals.signals cimport sig_check, sig_on, sig_off
 
 from sage.libs.gmp.mpz cimport *
 from sage.libs.linbox.fflas cimport FFLAS_TRANSPOSE, FflasNoTrans, FflasTrans, \
-    FfpackTileRecursive, FfpackSlabRecursive, FflasLeft, FflasRight, vector, list as std_list, \
-    RankProfileFromLU, PLUQtoEchelonPermutation, MathPerm2LAPACKPerm, LAPACKPerm2MathPerm
+    FfpackTileRecursive, FflasLeft, FflasRight, vector, list as std_list, \
+    RankProfileFromLU, PLUQtoEchelonPermutation, MathPerm2LAPACKPerm
 
 from libcpp cimport bool
 from sage.parallel.parallelism import Parallelism
@@ -1838,8 +1838,8 @@ cdef class Matrix_modn_dense_template(Matrix_dense):
           ignore). However, ``efd=True`` uses more memory than FFLAS
           directly (default: ``True``)
 
-        OUTPUT: if ``efd`` is ``False``, return the row rank profile of
-        ``self``
+        OUTPUT: if ``efd`` is ``False``, return the pivot rows (a.k.a. row rank
+        profile) of the matrix ``self`` before echelonization
 
         EXAMPLES::
 
@@ -1859,7 +1859,8 @@ cdef class Matrix_modn_dense_template(Matrix_dense):
             r, pivots = linbox_echelonize_efd(self.p, self._entries,
                                               self._nrows, self._ncols)
         else:
-            r, pivots, rrp = linbox_echelonize(self.p, self._entries, self._nrows, self._ncols)
+            r, pivots, rrp = linbox_echelonize(self.p, self._entries,
+                                               self._nrows, self._ncols)
         verbose('done with echelonize', t)
         self.cache('in_echelon_form', True)
         self.cache('rank', r)