remove spancmp (#7409)

# Objective

- This tool get less use than I hoped, as we gained more proficiency with other tracing tools like tracy

## Solution

- Remove it

Author: mockersf

.github/workflows/post-release.yml

@@ -45,7 +45,6 @@ jobs:
             --exclude ci \
             --exclude errors \
             --exclude bevy-ios-example \
-            --exclude spancmp \
             --exclude build-wasm-example
 
       - name: Create PR

.github/workflows/release.yml

@@ -42,7 +42,6 @@ jobs:
             --exclude ci \
             --exclude errors \
             --exclude bevy-ios-example \
-            --exclude spancmp \
             --exclude build-wasm-example
 
       - name: Create PR

Cargo.toml

@@ -19,7 +19,6 @@ members = [
   "examples/android",
   "examples/ios",
   "tools/ci",
-  "tools/spancmp",
   "tools/build-example-pages",
   "tools/build-wasm-example",
   "errors",