rust: Automatically generated Clippy fixes for the tools only

Clippy settings:

[workspace.lints.clippy]
cognitive_complexity = "warn"
dbg_macro = "warn"
debug_assert_with_mut_call = "warn"
doc_link_with_quotes = "warn"
doc_markdown = "warn"
empty_line_after_outer_attr = "warn"
empty_structs_with_brackets = "warn"
float_cmp = "warn"
float_cmp_const = "warn"
float_equality_without_abs = "warn"
missing_const_for_fn = "warn"
missing_errors_doc = "warn"
mod_module_files = "warn"
option_if_let_else = "warn"
similar_names = "warn"
suspicious_operation_groupings = "warn"
unused_self = "warn"
use_debug = "warn"
used_underscore_binding = "warn"
useless_let_if_seq = "warn"
wildcard_dependencies = "warn"
wildcard_imports = "warn"

Command used:

  $ cargo +nightly clippy --fix

Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

rust/pvapconfig/src/ap.rs

@@ -578,10 +578,7 @@ pub fn set_apqn_bind_state(card: u32, dom: u32, state: BindState) -> Result<(),
                 card, dom
             ));
         }
-        let newstate = match get_apqn_bind_state(card, dom) {
-            Err(err) => return Err(err),
-            Ok(s) => s,
-        };
+        let newstate = get_apqn_bind_state(card, dom)?;
         if newstate == state {
             return Ok(());
         }
@@ -653,10 +650,7 @@ fn set_apqn_associate_state_associate(card: u32, dom: u32, idx: u16) -> Result<(
                 card, dom, idx
             ));
         }
-        let newstate = match get_apqn_associate_state(card, dom) {
-            Err(err) => return Err(err),
-            Ok(s) => s,
-        };
+        let newstate = get_apqn_associate_state(card, dom)?;
         if let AssocState::Associated(i) = newstate {
             if idx == i {
                 return Ok(());
@@ -694,10 +688,7 @@ fn set_apqn_associate_state_unbind(card: u32, dom: u32) -> Result<(), String> {
                 card, dom
             ));
         }
-        let newstate = match get_apqn_associate_state(card, dom) {
-            Err(err) => return Err(err),
-            Ok(s) => s,
-        };
+        let newstate = get_apqn_associate_state(card, dom)?;
         if newstate == AssocState::Unassociated {
             return Ok(());
         }