[source] utils/otrx: drop Build/Prepare rule in favor of default one

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/ce2c6e5d24af3a238e45289099f5b5c70b15f7d1

commit ce2c6e5d24af3a238e45289099f5b5c70b15f7d1
Author: Alexandru Ardelean <ardeleanalex at gmail.com>
AuthorDate: Thu Oct 6 09:21:44 2016 +0300

    utils/otrx: drop Build/Prepare rule in favor of default one
    
    Signed-off-by: Alexandru Ardelean <ardeleanalex at gmail.com>
---
 package/utils/otrx/Makefile | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/package/utils/otrx/Makefile b/package/utils/otrx/Makefile
index 82c973a..9cb76c1 100644
--- a/package/utils/otrx/Makefile
+++ b/package/utils/otrx/Makefile
@@ -26,11 +26,6 @@ define Package/otrx/description
  This package contains an utility that allows validating TRX images.
 endef
 
-define Build/Prepare
-	mkdir -p $(PKG_BUILD_DIR)
-	$(CP) ./src/* $(PKG_BUILD_DIR)/
-endef
-
 define Build/Compile
 	$(MAKE) -C $(PKG_BUILD_DIR) \
 		CC="$(TARGET_CC)" \