[DOC] Remove outdated documentation about command injection

[Feature #19630]

This dangerous behavior was removed in 4.0 (996cae65f3cc8fed60c6bb758b00882cac49389d)
but the documentation wasn't updated.

1 files changed, 0 insertions, 22 deletions

diff --git a/doc/security/command_injection.rdoc b/doc/security/command_injection.rdoc
index ee33d4a04e..d46e42f7be 100644
--- a/doc/security/command_injection.rdoc
+++ b/doc/security/command_injection.rdoc
@@ -13,25 +13,3 @@ These methods include:
 - {\`command` (backtick method)}[rdoc-ref:Kernel#`]
   (also called by the expression <tt>%x[command]</tt>).
 - IO.popen (when called with other than <tt>"-"</tt>).
-
-Some methods execute a system command only if the given path name starts
-with a <tt>|</tt>:
-
-- Kernel.open(command).
-- IO.read(command).
-- IO.write(command).
-- IO.binread(command).
-- IO.binwrite(command).
-- IO.readlines(command).
-- IO.foreach(command).
-- URI.open(command).
-
-Note that some of these methods do not execute commands when called
-from subclass +File+:
-
-- File.read(path).
-- File.write(path).
-- File.binread(path).
-- File.binwrite(path).
-- File.readlines(path).
-- File.foreach(path).