Fix for compilation

Author: J-Price-3

src/riemannian/hamiltonian.jl

@@ -154,16 +154,6 @@ function ∂H∂r(
     return G \ r
 end
 
-# Non-keyword version for backward compatibility with integrator
-function ∂H∂r(
-    h::Hamiltonian{<:AbstractRiemannianMetric,<:GaussianKinetic},
-    θ::AbstractVector,
-    r::AbstractVector,
-)
-    G_eval = metric_eval(h.metric, θ)
-    return G_eval \ r
-end
-
 ####
 #### Negative energy (log probability)
 ####
@@ -200,16 +190,6 @@ function neg_energy(
     return -logZ - quadform / 2
 end
 
-# Non-keyword version for backward compatibility
-function neg_energy(
-    h::Hamiltonian{<:AbstractRiemannianMetric,<:GaussianKinetic},
-    r::AbstractVector,
-    θ::AbstractVector,
-)
-    G_eval = metric_eval(h.metric, θ)
-    return neg_energy(h, r, θ; G_eval=G_eval)
-end
-
 ####
 #### Phase point construction
 ####

src/riemannian/metric.jl

@@ -1,3 +1,5 @@
+import LinearAlgebra
+
 ####
 #### Riemannian Metric Types
 ####