gobject-introspection: update to version 1.56.0

Remove outdated post-patch reinplace statements.

gnome/gobject-introspection/Portfile

@@ -4,7 +4,7 @@ PortSystem          1.0
 PortGroup           active_variants 1.1
 
 name                gobject-introspection
-version             1.54.1
+version             1.56.0
 set branch          [join [lrange [split ${version} .] 0 1] .]
 categories          gnome
 platforms           darwin
@@ -19,8 +19,9 @@ homepage            https://wiki.gnome.org/Projects/GObjectIntrospection
 master_sites        gnome:sources/${name}/${branch}/
 use_xz              yes
 
-checksums           rmd160  6aa0bd6e6f9b95fb4d87832a3833c89fc71ed599 \
-                    sha256  b88ded5e5f064ab58a93aadecd6d58db2ec9d970648534c63807d4f9a7bb877e
+checksums           rmd160  13bb40bbb018f203a900c541e2891b687b2ae975 \
+                    sha256  0d7059fad7aa5ec50d9678aea4ea139acab23737e9cf9ca0d86c615cecbaa0f8 \
+                    size    1397640
 
 depends_build       port:pkgconfig
 
@@ -34,8 +35,6 @@ depends_run         bin:glibtool:libtool
 patchfiles          no-env-shebang.patch
 
 post-patch {
-    reinplace "s|'cc'|'${configure.cc}'|g" ${worksrcpath}/giscanner/sourcescanner.py
-    reinplace "s|'gcc'|'${configure.cc}'|g" ${worksrcpath}/giscanner/dumper.py
     reinplace "s|libcairo-gobject.2.dylib|${prefix}/lib/libcairo-gobject.2.dylib|g" ${worksrcpath}/configure
 }