Remove note on implicit version

Doc/noDist/implicit/figure/FMM.png

Doc/noDist/implicit/figure/blocked.png

.../implicit/figure/cube-explicit-8N-70M-h8-ng2000-gantt.png

.../implicit/figure/cube-implicit-8N-70M-h8-ng2000-gantt.png

...t/figure/cube-implicit-limited-8N-70M-h8-ng2000-gantt.png

Doc/noDist/implicit/figure/ellipsedistribution.png

Doc/noDist/implicit/figure/group_issue1.png

Doc/noDist/implicit/figure/morton_box_center.png

Doc/noDist/implicit/figure/naive_split.png

Doc/noDist/implicit/figure/octree.png

Doc/noDist/implicit/figure/uniformdistribution.png

Doc/noDist/implicit/implicit.org