diff --git a/doc/images/ldmCspeed.png b/doc/images/ldmCspeed.png
deleted file mode 100644
index d3bfce4c8..000000000
Binary files a/doc/images/ldmCspeed.png and /dev/null differ
diff --git a/doc/images/ldmDspeed.png b/doc/images/ldmDspeed.png
deleted file mode 100644
index d5445f018..000000000
Binary files a/doc/images/ldmDspeed.png and /dev/null differ
diff --git a/doc/images/linux-4.7-12-compress.png b/doc/images/linux-4.7-12-compress.png
deleted file mode 100644
index 71f3381bd..000000000
Binary files a/doc/images/linux-4.7-12-compress.png and /dev/null differ
diff --git a/doc/images/linux-4.7-12-decompress.png b/doc/images/linux-4.7-12-decompress.png
deleted file mode 100644
index c99ff9809..000000000
Binary files a/doc/images/linux-4.7-12-decompress.png and /dev/null differ
diff --git a/doc/images/linux-4.7-12-mt-compress.png b/doc/images/linux-4.7-12-mt-compress.png
deleted file mode 100644
index c66ac0d5e..000000000
Binary files a/doc/images/linux-4.7-12-mt-compress.png and /dev/null differ
diff --git a/doc/images/linux-git-compress.png b/doc/images/linux-git-compress.png
deleted file mode 100644
index 3fa0e88f4..000000000
Binary files a/doc/images/linux-git-compress.png and /dev/null differ
diff --git a/doc/images/linux-git-decompress.png b/doc/images/linux-git-decompress.png
deleted file mode 100644
index 279ba7cf2..000000000
Binary files a/doc/images/linux-git-decompress.png and /dev/null differ
diff --git a/doc/images/linux-git-mt-compress.png b/doc/images/linux-git-mt-compress.png
deleted file mode 100644
index 538b8a9fc..000000000
Binary files a/doc/images/linux-git-mt-compress.png and /dev/null differ