remove unneded patch

Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

grep-fix-metadata.diff

@@ -1,27 +0,0 @@
---- grep-0.2.3/Cargo.toml	1970-01-01T01:00:00+01:00
-+++ grep-0.2.3/Cargo.toml	2018-10-28T08:56:47.934212+01:00
-@@ -39,17 +39,6 @@
- 
- [dependencies.grep-searcher]
- version = "0.1.1"
--[dev-dependencies.atty]
--version = "0.2.11"
--
--[dev-dependencies.clap]
--version = "2.32.0"
--features = ["suggestions"]
--default-features = false
--
--[dev-dependencies.regex]
--version = "1"
--
- [dev-dependencies.termcolor]
- version = "1"
- 
-@@ -57,6 +46,4 @@
- version = "2.2.2"
- 
- [features]
--avx-accel = ["grep-searcher/avx-accel"]
- pcre2 = ["grep-pcre2"]
--simd-accel = ["grep-searcher/simd-accel"]