fix clippy needless lifetimes (#769)

+ ignore them for bevy where we often want explicitness

src/dynamics/solver/contact_constraint/two_body_constraint.rs

@@ -11,7 +11,7 @@ use na::{DVector, Matrix2};
 
 use super::{TwoBodyConstraintElement, TwoBodyConstraintNormalPart};
 
-impl<'a> AnyConstraintMut<'a, ContactConstraintTypes> {
+impl AnyConstraintMut<'_, ContactConstraintTypes> {
     pub fn remove_bias(&mut self) {
         match self {
             Self::OneBody(c) => c.remove_cfm_and_bias_from_rhs(),

src/dynamics/solver/interaction_groups.rs

@@ -18,7 +18,7 @@ pub(crate) trait PairInteraction {
 use crate::dynamics::RigidBodyType;
 
 #[cfg(feature = "parallel")]
-impl<'a> PairInteraction for &'a mut ContactManifold {
+impl PairInteraction for &mut ContactManifold {
     fn body_pair(&self) -> (Option<RigidBodyHandle>, Option<RigidBodyHandle>) {
         (self.data.rigid_body1, self.data.rigid_body2)
     }

src/dynamics/solver/joint_constraint/any_joint_constraint.rs

@@ -27,7 +27,7 @@ use crate::dynamics::solver::joint_constraint::joint_constraint_builder::{
 
 pub struct JointConstraintTypes;
 
-impl<'a> AnyConstraintMut<'a, JointConstraintTypes> {
+impl AnyConstraintMut<'_, JointConstraintTypes> {
     pub fn remove_bias(&mut self) {
         match self {
             Self::OneBody(c) => c.remove_bias_from_rhs(),