Revert "Dockerfile: add curl and lcov. For codecov"
Revert "Dockerfile: add curl and lcov. For codecov"

This reverts commit 6169ec9501c537a3f341a5eca0701e0f4c0b9200.

[ci skip]

LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,anarsoul/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,anarsoul/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,anarsoul/rawspeed