Remove doc/snippets/MatrixBase_minor.cpp because minor() was removed.
Remove doc/snippets/MatrixBase_minor.cpp because minor() was removed.

ritsu1228/eigen,TSC21/Eigen,TSC21/Eigen,toastedcrumpets/eigen,toastedcrumpets/eigen,ROCmSoftwarePlatform/hipeigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,TSC21/Eigen,Zefz/eigen,Zefz/eigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,toastedcrumpets/eigen,ritsu1228/eigen,pasuka/eigen,ritsu1228/eigen,pasuka/eigen,TSC21/Eigen,pasuka/eigen,Zefz/eigen,ritsu1228/eigen,Zefz/eigen,toastedcrumpets/eigen