sim: Remove extraneous static

According to clippy, `&'static` can just be `&` for static definitions,
which always have a static lifetime.  Clean this up in the arrays in the
code, as well as generation code in imgtool.

Signed-off-by: David Brown <david.brown@linaro.org>

scripts/imgtool/keys/general.py

@@ -31,7 +31,7 @@ class KeyClass(object):
 
     def emit_rust_public(self, file=sys.stdout):
         self._emit(
-                header="static {}_PUB_KEY: &'static [u8] = &[".format(self.shortname().upper()),
+                header="static {}_PUB_KEY: &[u8] = &[".format(self.shortname().upper()),
                 trailer="];",
                 encoded_bytes=self.get_public_bytes(),
                 indent="    ",

sim/mcuboot-sys/src/c.rs

@@ -8,7 +8,6 @@
 
 use crate::area::AreaDesc;
 use simflash::SimMultiFlash;
-use libc;
 use crate::api;
 
 /// Invoke the bootloader on this flash device.

sim/src/ecdsa_pub_key-rs.txt

@@ -1,4 +1,4 @@
-static ECDSA256_PUB_KEY: &'static [u8] = &[
+static ECDSA256_PUB_KEY: &[u8] = &[
     0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2a, 0x86,
     0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a,
     0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03,

sim/src/ed25519_pub_key-rs.txt

@@ -1,4 +1,4 @@
-static ED25519_PUB_KEY: &'static [u8] = &[
+static ED25519_PUB_KEY: &[u8] = &[
     0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65,
     0x70, 0x03, 0x21, 0x00, 0xd4, 0xb3, 0x1b, 0xa4,
     0x9a, 0x3a, 0xdd, 0x3f, 0x82, 0x5d, 0x10, 0xca,

sim/src/lib.rs

@@ -33,7 +33,7 @@ pub use crate::{
     },
 };
 
-const USAGE: &'static str = "
+const USAGE: &str = "
 Mcuboot simulator
 
 Usage:
@@ -67,7 +67,7 @@ pub enum DeviceName {
     Nrf52840UnequalSlots,
 }
 
-pub static ALL_DEVICES: &'static [DeviceName] = &[
+pub static ALL_DEVICES: &[DeviceName] = &[
     DeviceName::Stm32f4,
     DeviceName::K64f,
     DeviceName::K64fBig,

sim/src/rsa3072_pub_key-rs.txt

@@ -1,5 +1,5 @@
 /* Autogenerated by imgtool.py, do not edit. */
-static RSA3072_PUB_KEY: &'static [u8] = &[
+static RSA3072_PUB_KEY: &[u8] = &[
     0x30, 0x82, 0x01, 0x8a, 0x02, 0x82, 0x01, 0x81,
     0x00, 0xb4, 0x2c, 0x0e, 0x98, 0x58, 0x10, 0xa4,
     0xa7, 0x58, 0x99, 0x7c, 0x01, 0xdd, 0x08, 0x2a,

sim/src/rsa_pub_key-rs.txt

@@ -1,5 +1,5 @@
 /* Autogenerated by imgtool.py, do not edit. */
-static RSA_PUB_KEY: &'static [u8] = &[
+static RSA_PUB_KEY: &[u8] = &[
     0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01,
     0x00, 0xd1, 0x06, 0x08, 0x1a, 0x18, 0x44, 0x2c,
     0x18, 0xe8, 0xfb, 0xfd, 0xf7, 0x0d, 0xa3, 0x4f,