PHP buildpack became more clever. Simplify the sample app

[jimmykarily]

Signed-off-by: Dimitris Karakasilis DKarakasilis@suse.com

[codecov-commenter]

Codecov Report

Merging #1421 (69a2b87) into main (4cdb52e) will decrease coverage by 13.23%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main    #1421       +/-   ##
===========================================
- Coverage   40.43%   27.20%   -13.24%     
===========================================
  Files         155      155               
  Lines       11294    11294               
===========================================
- Hits         4567     3072     -1495     
- Misses       6128     7763     +1635     
+ Partials      599      459      -140     

Flag	Coverage Δ
acceptance-api	?
acceptance-apps	25.10% <ø> (+0.11%)	⬆️
acceptance-cli	?
unittests	7.06% <ø> (ø)

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Impacted Files	Coverage Δ
internal/api/v1/appchart/match.go	0.00% <0.00%> (-80.65%)	⬇️
internal/api/v1/namespace/match.go	0.00% <0.00%> (-80.65%)	⬇️
internal/api/v1/configurationbinding/create.go	0.00% <0.00%> (-76.64%)	⬇️
internal/api/v1/configurationbinding/delete.go	0.00% <0.00%> (-75.00%)	⬇️
internal/services/instances.go	5.55% <0.00%> (-72.23%)	⬇️
internal/api/v1/service/delete.go	0.00% <0.00%> (-72.00%)	⬇️
internal/api/v1/application/show.go	0.00% <0.00%> (-71.43%)	⬇️
internal/api/v1/service/controller.go	0.00% <0.00%> (-70.00%)	⬇️
internal/api/v1/application/exec.go	0.00% <0.00%> (-69.74%)	⬇️
internal/services/catalog.go	0.00% <0.00%> (-68.09%)	⬇️
... and 57 more

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[juadk]

Next thing is to fix https://github.com/epinio/example-wordpress (removing buildpack.yml etc)