chore: clean up images from restify example

[rauno56]

Those images are not used anywhere.

[codecov]

Codecov Report

Merging #434 (de3c720) into main (b128dae) will increase coverage by 3.83%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #434      +/-   ##
==========================================
+ Coverage   92.00%   95.83%   +3.83%     
==========================================
  Files           2       15      +13     
  Lines          25      624     +599     
  Branches        4       94      +90     
==========================================
+ Hits           23      598     +575     
- Misses          2       26      +24     

Impacted Files	Coverage Δ
packages/opentelemetry-host-metrics/src/enum.ts	100.00% <0.00%> (ø)
...propagator-ot-trace/test/OTTracePropagator.test.ts	100.00% <0.00%> (ø)
...s/opentelemetry-propagator-aws-xray/src/version.ts	0.00% <0.00%> (ø)
packages/opentelemetry-host-metrics/src/metric.ts	100.00% <0.00%> (ø)
...metry-propagator-ot-trace/src/OTTracePropagator.ts	95.83% <0.00%> (ø)
packages/opentelemetry-host-metrics/src/version.ts	100.00% <0.00%> (ø)
...ages/opentelemetry-host-metrics/src/BaseMetrics.ts	57.57% <0.00%> (ø)
...metry-propagator-aws-xray/src/AWSXRayPropagator.ts	100.00% <0.00%> (ø)
...s/opentelemetry-propagator-ot-trace/src/version.ts	0.00% <0.00%> (ø)
...ackages/opentelemetry-host-metrics/src/stats/si.ts	66.66% <0.00%> (ø)
... and 3 more