[cc:riscv64] Do not pass -mno-strict-align while linking

Bug: http://b/327307773

Newer clang rejects this flag as unsupported.  It is not necessary while linking because the flag is passed as an IR feature.

Change-Id: I781afd913be7c07612196e736c3ae58773791071
diff --git a/cc/config/riscv64_device.go b/cc/config/riscv64_device.go
index f133470..47f0de1 100644
--- a/cc/config/riscv64_device.go
+++ b/cc/config/riscv64_device.go
@@ -45,8 +45,6 @@
 		// This is already the driver's Android default, but duplicated here (and
 		// above) for ease of experimentation with additional extensions.
 		"-march=rv64gcv_zba_zbb_zbs",
-		// TODO: move to driver (https://github.com/google/android-riscv64/issues/111)
-		"-mno-strict-align",
 		// TODO: remove when clang default changed (https://github.com/google/android-riscv64/issues/124)
 		"-Wl,-mllvm -Wl,-jump-is-expensive=false",
 	}