Remove RPM build script that we have no idea if it works (#923)

* Remove RPM build script that we have no idea if it works

* MANIFEST.in as well
diff --git a/MANIFEST.in b/MANIFEST.in
index cfbec1c..bc3ee4d 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -2,7 +2,6 @@
 exclude             leakcheck codecov.yml
 recursive-include   tests           *.py
 recursive-include   doc             *
-recursive-include   rpm             *
 recursive-exclude   leakcheck       *.py *.pem
 prune               doc/_build
 prune               .travis
diff --git a/rpm/build_script b/rpm/build_script
deleted file mode 100644
index 1b0276b..0000000
--- a/rpm/build_script
+++ /dev/null
@@ -1 +0,0 @@
-make -C doc text html