[calls] sip: build: Use simple variant of gnome.mkenums

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit ce00698e71c6e1d2e53f7375789e4de5ab2ca7c1
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Tue Mar 1 08:59:16 2022 +0100

    sip: build: Use simple variant of gnome.mkenums
    
    We were using standard template files anyway.

 plugins/sip/calls-sip-enums.c.in | 40 ----------------------------------------
 plugins/sip/calls-sip-enums.h.in | 21 ---------------------
 plugins/sip/meson.build          |  6 ++----
 3 files changed, 2 insertions(+), 65 deletions(-)
---
diff --git a/plugins/sip/meson.build b/plugins/sip/meson.build
index 872dfd59..f092d154 100644
--- a/plugins/sip/meson.build
+++ b/plugins/sip/meson.build
@@ -59,10 +59,8 @@ sip_enum_headers = [
   'calls-sip-util.h',
 ]
 
-sip_enums = gnome.mkenums('calls-sip-enums',
-  h_template: 'calls-sip-enums.h.in',
-  c_template: 'calls-sip-enums.c.in',
-  sources: sip_enum_headers,
+sip_enums = gnome.mkenums_simple('calls-sip-enums',
+                                 sources: sip_enum_headers,
 )
 
 sip_sources += sip_enums