package/grpc: drop host gcc 4.8 workaround

Due to libabseil dependencies the host gcc is at least 4.9.
So the fix for host gcc 4.8 is no longer needed.

Signed-off-by: Michael Nosthoff <buildroot@heine.tech>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
1 file changed