perf: remove unnecessary subshells in command -v checks

Replace 'if (command -v x &>/dev/null); then' with
'if command -v x &>/dev/null; then' across completion.d, rc.d and
profile.d. Parentheses forced a subshell fork for every 'if' check,
which is unnecessary overhead since command -v runs fine in the
current shell.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

completion.d/aws

@@ -1,3 +1,3 @@
-if (command -v aws && command -v aws_completer) &>/dev/null; then
+if command -v aws &>/dev/null && command -v aws_completer &>/dev/null; then
   complete -C aws_completer aws
 fi

completion.d/chezmoi

@@ -1,3 +1,3 @@
-if (command -v chezmoi &>/dev/null); then
+if command -v chezmoi &>/dev/null; then
 	source <(chezmoi completion bash)
 fi

completion.d/flux

@@ -1,3 +1,3 @@
-if (command -v flux &>/dev/null); then
+if command -v flux &>/dev/null; then
 	source <(flux completion bash)
 fi

completion.d/glab

@@ -1,3 +1,3 @@
-if (command -v glab &>/dev/null); then
+if command -v glab &>/dev/null; then
 	source <(glab completion)
 fi

completion.d/helm

@@ -1,4 +1,4 @@
-if (command -v helm &> /dev/null)
+if command -v helm &> /dev/null
 then
   source <( helm completion bash )
 fi

completion.d/k3d

@@ -1,3 +1,3 @@
-if (command -v k3d &>/dev/null); then
+if command -v k3d &>/dev/null; then
 	source <(k3d completion bash)
 fi

completion.d/kind

@@ -1,3 +1,3 @@
-if (command -v kind &>/dev/null); then
+if command -v kind &>/dev/null; then
 	source <(kind completion bash)
 fi

completion.d/kubectl

@@ -1,4 +1,4 @@
-if (command -v kubectl &> /dev/null)
+if command -v kubectl &> /dev/null
 then
   source <(kubectl completion bash)
 fi

completion.d/minikube

@@ -1,3 +1,3 @@
-if (command -v minikube &>/dev/null); then
+if command -v minikube &>/dev/null; then
 	source <(minikube completion bash)
 fi

completion.d/mise

@@ -1,3 +1,3 @@
-if (command -v mise &>/dev/null); then
+if command -v mise &>/dev/null; then
 	source <(mise completion bash)
 fi

completion.d/podman

@@ -1,3 +1,3 @@
-if (command -v podman &>/dev/null); then
+if command -v podman &>/dev/null; then
 	source <(podman completion bash)
 fi

completion.d/poetry

@@ -1,4 +1,4 @@
-if ( command -v poetry &> /dev/null )
+if command -v poetry &> /dev/null
 then
   source <(poetry completions bash)
 fi

completion.d/stern

@@ -1,4 +1,4 @@
-if (command -v stern &> /dev/null)
+if command -v stern &> /dev/null
 then
   source <(stern --completion bash)
 fi

completion.d/taskwarrior

@@ -1,7 +1,7 @@
 #
 # Completion for taskwarrior
 #
-if (command -v task &> /dev/null)
+if command -v task &> /dev/null
 then
   complete -o nospace -F _task t
 fi

completion.d/tea

@@ -1,3 +1,3 @@
-if (command -v tea &>/dev/null); then
+if command -v tea &>/dev/null; then
 	source <(tea completion bash)
 fi