cli: remove unsupported :env on flag definitions for --timeout-wait-for-user to fix parser keyword error

Author: rehkad

Library/Homebrew/cmd/install.rb

@@ -51,8 +51,7 @@ class InstallCmd < AbstractCommand
                description: "Fail fast on any interactive prompt and use non-interactive sudo where applicable.",
                env:         :non_interactive
         flag "--timeout-wait-for-user=",
-             description: "Wait this many seconds when an interactive prompt is detected; then skip the item.",
-             env:         :prompt_timeout_secs
+             description: "Wait this many seconds when an interactive prompt is detected; then skip the item."
         [
           [:switch, "--formula", "--formulae", {
             description: "Treat all named arguments as formulae.",

Library/Homebrew/cmd/upgrade.rb

@@ -47,8 +47,7 @@ class UpgradeCmd < AbstractCommand
                description: "Fail fast on any interactive prompt and use non-interactive sudo where applicable.",
                env:         :non_interactive
         flag "--timeout-wait-for-user=",
-             description: "Wait this many seconds when an interactive prompt is detected; then skip the item.",
-             env:         :prompt_timeout_secs
+             description: "Wait this many seconds when an interactive prompt is detected; then skip the item."
         [
           [:switch, "--formula", "--formulae", {
             description: "Treat all named arguments as formulae. If no named arguments " \