Update CQ keywords documentation

site/dev/contrib/cqkeywords.md

Index: site/dev/contrib/cqkeywords.md
diff --git a/site/dev/contrib/cqkeywords.md b/site/dev/contrib/cqkeywords.md
index 2616595d191f342dc1b48f41a8c1eb4f1469959b..c908551cb479b36d4d5b9e092be9cc6a70c0690d 100644
--- a/site/dev/contrib/cqkeywords.md
+++ b/site/dev/contrib/cqkeywords.md
@@ -38,41 +38,6 @@ Here are some real world examples:
 
     CQ_INCLUDE_TRYBOTS=tryserver.skia:Build-Mac10.9-Clang-x86_64-Debug
 
-CQ_EXCLUDE_TRYBOTS
-------------------
-
-Allows you to remove trybots from the CQ's list of default trybots. Should only be
-used when particular builders are failing for reasons unrelated to your code changes.
-
-This is the format of the values of this keyword:
-
-    CQ_EXCLUDE_TRYBOTS=master1:bot1,bot2;master2:bot3,bot4
-
-Here are some real world examples:
-
-    CQ_EXCLUDE_TRYBOTS=tryserver.chromium:win_chromium_compile_dbg
-
-    CQ_EXCLUDE_TRYBOTS=tryserver.skia:Build-Win7-VS2010-x86-Debug-Trybot
-
-CQ_TRYBOTS
-----------
-
-Allows you to list every trybot that you want to run for your CL.
-
-This is the format of the values of this keyword:
-
-    CQ_TRYBOTS=master1:bot1,bot2;master2:bot3,bot4
-
-Here are some real world examples:
-
-    CQ_TRYBOTS=tryserver.chromium:linux_chromium_gn_rel,linux_chromium_chromeos_rel,
-      android_dbg_triggered_tests,android_dbg,mac_chromium_rel,win_chromium_x64_rel
-
-    CQ_TRYBOTS=tryserver.skia:Build-Win7-VS2010-x86-Debug-Trybot,
-      Test-Ubuntu13.10-ShuttleA-NoGPU-x86_64-Debug-Trybot,
-      Build-Ubuntu13.10-GCC4.8-x86_64-Release-Trybot,
-      Build-Ubuntu13.10-Clang-x86_64-Debug-Trybot,Build-Mac10.8-Clang-x86_64-Release-Trybot
-
 TBR
 ---
 
@@ -94,12 +59,12 @@ you can add the following line to the CL description:
 This is discouraged, since the tree is closed for a reason. However, in rare cases this is acceptable,
 primarily to fix build breakages (i.e., your CL will help in reopening the tree).
 
-CQ_EXCLUDE_TRYBOTS=client.skia.fyi:skia_presubmit-Trybot (née NOPRESUBMIT)
+NOPRESUBMIT
 -----------
 
 If you want to skip the presubmit checks, add the following line to the CL description:
 
-    CQ_EXCLUDE_TRYBOTS=client.skia.fyi:skia_presubmit-Trybot
+    NOPRESUBMIT=true
 
 NOTRY
 -----