[gnome-build-meta] No need to specify python3: python3 is already the default

[Javier Jardón Cabezas <jjardon src gnome org>]

commit a59048d051c68a8a4be18ab35d956521e5528722
Author: Javier Jardón <jjardon gnome org>
Date:   Tue Feb 27 00:05:39 2018 +0000

    No need to specify python3: python3 is already the default

 elements/core-deps/meson.bst    | 2 --
 elements/core-deps/py3cairo.bst | 2 --
 2 files changed, 4 deletions(-)
---
diff --git a/elements/core-deps/meson.bst b/elements/core-deps/meson.bst
index ff5cc32..2542a4b 100644
--- a/elements/core-deps/meson.bst
+++ b/elements/core-deps/meson.bst
@@ -5,5 +5,3 @@ sources:
   ref: 2ea1a721574adb23160b6481191bcc1173f374e02b0ff3bb0ae85d988d97e4fa
 depends:
 - base.bst
-variables:
-  python: python3
diff --git a/elements/core-deps/py3cairo.bst b/elements/core-deps/py3cairo.bst
index 5c04ad9..ff2ff07 100644
--- a/elements/core-deps/py3cairo.bst
+++ b/elements/core-deps/py3cairo.bst
@@ -5,5 +5,3 @@ sources:
   ref: 47a14a6a2f8dadb649229f099ac712a5f3d0a22e14877165a203d8a0de09ad63
 depends:
 - base.bst
-variables:
-  python: python3