[source] layerscape: do not add custom CFLAGS.

[LEDE Commits]

hauke pushed a commit to source.git, branch master:
https://git.lede-project.org/a5d26d7fad1909bafbb6cec52664c3b684a0220c

commit a5d26d7fad1909bafbb6cec52664c3b684a0220c
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Sat Jul 15 22:52:52 2017 +0200

    layerscape: do not add custom CFLAGS.
    
    The selected CFLAGS are already set by default.
    
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 target/linux/layerscape/64b/target.mk | 1 -
 1 file changed, 1 deletion(-)

diff --git a/target/linux/layerscape/64b/target.mk b/target/linux/layerscape/64b/target.mk
index 22efa66..98aa8be 100644
--- a/target/linux/layerscape/64b/target.mk
+++ b/target/linux/layerscape/64b/target.mk
@@ -7,7 +7,6 @@
 
 ARCH:=aarch64
 BOARDNAME:=layerscape 64b boards
-CFLAGS:=-Os -pipe -fno-caller-saves
 
 define Target/Description
 	Build firmware images for $(BOARDNAME) SoC devices.