Revert unintended changes to conf-bison, conf-flex and conf-autotools

Author: Justme0606

packages/conf-autoconf/conf-autoconf.0.2/opam

@@ -27,10 +27,6 @@ depexts: [
   ["autoconf"] {os-distribution = "cygwin"}
   ["autoconf"] {os-family = "suse" | os-family = "opensuse"}
   ["autoconf"] {os-family = "altlinux"}
-  [ "autoconf" ] { os = "win32" & os-distribution = "cygwinports" }
-  [ "autoconf" ] { os = "win32" & os-distribution = "cygwin" }
-  [ "autoconf" ] { os = "cygwin" & os-distribution = "cygwin" }
-  [ "autoconf" ] { os = "win32" & os-distribution = "msys2" }
 ]
 synopsis: "Virtual package relying on autoconf installation"
 description: """

packages/conf-automake/conf-automake.1/opam

@@ -35,9 +35,6 @@ depexts: [
   [ "system:automake" ] {os = "win32" & os-distribution = "cygwinports"}
   [ "automake" ] {os-distribution = "cygwin"}
   [ "automake" ] {os-family = "altlinux"}
-  [ "automake" ] { os = "win32" & os-distribution = "cygwin" }
-  [ "automake" ] { os = "win32" & os-distribution = "msys2" }
-  [ "automake" ] { os = "cygwin" & os-distribution = "cygwin" }
 ]
 synopsis: "Virtual package relying on GNU automake"
 description: "This package can only install if GNU automake is installed on the system."

packages/conf-bison/conf-bison.2/opam

@@ -48,10 +48,6 @@ depexts: [
   [ "bison" ] {os-family = "suse" | os-family = "opensuse"}
   [ "bison" ] {os-family = "ubuntu"}
   [ "devel/bison" ] {os-family = "bsd"}
-  [ "bison" ]  { os = "win32" & os-distribution = "cygwinports" }
-  [ "bison" ] { os = "win32" & os-distribution = "cygwin" }
-  [ "bison" ] { os = "cygwin" & os-distribution = "cygwin" }
-  [ "bison" ] { os = "win32" & os-distribution = "msys2" }
 ]
 synopsis: "Virtual package relying on GNU bison"
 description: "This package can only install if GNU bison is installed on the system."

packages/conf-flex/conf-flex.2/opam

@@ -36,10 +36,6 @@ depexts: [
   [ "flex" ] {os-family = "mageia"}
   [ "flex" ] {os-family = "suse" | os-family = "opensuse"}
   [ "textproc/flex" ] {os-family = "bsd" & os-distribution = "freebsd"}
-  [ "flex" ] { os = "win32" & os-distribution = "cygwinports" }
-  [ "flex" ] { os = "win32" & os-distribution = "cygwin" }
-  [ "flex" ] { os = "cygwin" & os-distribution = "cygwin" }
-  [ "flex" ] { os = "win32" & os-distribution = "msys2" }
 ]
 synopsis: "Virtual package relying on GNU flex"
 description: "This package can only install if GNU flex is installed on the system."