diff --git a/doc/internals/entities.fig b/doc/internals/entities.fig
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-#FIG 3.2
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diff --git a/doc/internals/entities.pdf b/doc/internals/entities.pdf
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diff --git a/doc/internals/sequence.fig b/doc/internals/sequence.fig
deleted file mode 100644
index 295ace79b..000000000
--- a/doc/internals/sequence.fig
+++ /dev/null
@@ -1,123 +0,0 @@
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-4 0 0 50 -1 12 7 0.0000 4 90 1275 1710 1305 Standard settings\001
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--6
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--6
-6 450 2250 3510 3195
-4 0 0 50 -1 16 10 0.0000 4 150 2865 450 2385 Each time a poller detects an activity on a\001
-4 0 0 50 -1 16 10 0.0000 4 150 2940 450 2580 listening socket, this sequence is executed.\001
-4 0 0 50 -1 16 10 0.0000 4 150 3000 450 2775 Note that stream_sock_accept() loops until\001
-4 0 0 50 -1 16 10 0.0000 4 150 3030 450 2970 accept() returns an error or tune.maxaccept\001
-4 0 0 50 -1 16 10 0.0000 4 150 1830 450 3165 loops have been executed.\001
--6
-6 450 3375 3420 4275
-4 0 0 50 -1 16 10 0.0000 4 150 2535 450 3510 Once the session is started, function\001
-4 0 0 50 -1 16 10 0.0000 4 150 2880 450 3705 process_session() will be called once then\001
-4 0 0 50 -1 16 10 0.0000 4 150 2895 450 3900 each time an activity is detected on any of\001
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-4 0 0 50 -1 16 10 0.0000 4 120 555 450 4275 session.\001
--6
-6 4230 945 6480 1125
-2 2 0 1 26 6 51 -1 20 0.000 0 0 -1 0 0 5
-	 4230 945 6345 945 6345 1125 4230 1125 4230 945
-4 0 0 50 -1 14 10 0.0000 4 105 2205 4275 1080 rate-limit sessions ?\001
--6
-6 4455 1620 7065 1800
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-	 4455 1620 6885 1620 6885 1800 4455 1800 4455 1620
-4 0 0 50 -1 14 10 0.0000 4 135 2520 4521 1755 monitor-net (mode=tcp) ?\001
--6
-6 4455 1845 7470 2025
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-	 4455 1845 7290 1845 7290 2025 4455 2025 4455 1845
-4 0 0 50 -1 14 10 0.0000 4 135 2940 4500 1980 tcp-request connection {...}\001
--6
-6 4635 3195 7425 3735
-6 4680 3420 7380 3600
-2 2 0 1 26 6 51 -1 20 0.000 0 0 -1 0 0 5
-	 4680 3420 7200 3420 7200 3600 4680 3600 4680 3420
-4 0 0 50 -1 14 10 0.0000 4 135 2625 4725 3555 monitor-net (mode=http) ?\001
--6
-2 2 0 1 13 2 52 -1 20 0.000 0 0 -1 0 0 5
-	 4635 3195 7425 3195 7425 3735 4635 3735 4635 3195
-4 0 0 50 -1 14 10 0.0000 4 135 1575 4725 3330 http_init_txn()\001
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-	 6885 1710 7200 1710 7200 675
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-4 1 0 51 -1 12 7 0.0000 4 75 1275 6930 2250 not enough memory\001
-4 0 0 51 -1 12 7 1.5708 4 60 1575 8010 2790 return "OK" and close\001
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