Exclude all, not just span, generated semconv from coverage

[anuraaga]

Removed already removed path pre-deprecation too

[codecov]

Codecov Report

Merging #2872 (74f265a) into main (49f4bd0) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main    #2872      +/-   ##
============================================
+ Coverage     89.92%   89.97%   +0.04%     
- Complexity     2657     2658       +1     
============================================
  Files           310      310              
  Lines          8409     8409              
  Branches        839      839              
============================================
+ Hits           7562     7566       +4     
+ Misses          593      587       -6     
- Partials        254      256       +2     

Impacted Files	Coverage Δ	Complexity Δ
.../opentelemetry/api/internal/OtelEncodingUtils.java	100.00% <100.00%> (ø)	27.00 <2.00> (ø)
...c/main/java/io/opentelemetry/api/trace/SpanId.java	100.00% <100.00%> (ø)	15.00 <3.00> (+1.00)
.../main/java/io/opentelemetry/api/trace/TraceId.java	100.00% <100.00%> (ø)	16.00 <3.00> (+1.00)
...dk/extension/trace/jaeger/sampler/RateLimiter.java	94.11% <0.00%> (-5.89%)	4.00% <0.00%> (-1.00%)
...telemetry/sdk/trace/export/BatchSpanProcessor.java	88.59% <0.00%> (+4.38%)	10.00% <0.00%> (ø%)

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