diff --git a/graphs/response-time-day.png b/graphs/response-time-day.png deleted file mode 100644 index 502ac8cca..000000000 Binary files a/graphs/response-time-day.png and /dev/null differ diff --git a/graphs/response-time-month.png b/graphs/response-time-month.png deleted file mode 100644 index 89c9e484a..000000000 Binary files a/graphs/response-time-month.png and /dev/null differ diff --git a/graphs/response-time-week.png b/graphs/response-time-week.png deleted file mode 100644 index 3980b5e51..000000000 Binary files a/graphs/response-time-week.png and /dev/null differ diff --git a/graphs/response-time-year.png b/graphs/response-time-year.png deleted file mode 100644 index 0e33e2f09..000000000 Binary files a/graphs/response-time-year.png and /dev/null differ diff --git a/graphs/response-time.png b/graphs/response-time.png deleted file mode 100644 index 89c9e484a..000000000 Binary files a/graphs/response-time.png and /dev/null differ