Over medium heat, warm olive oil in a medium saucepan that can also go in the oven. Add garlic and cook, stirring occasionally, until the edges start turning golden brown (about 2 minutes). Stir in the fire roasted tomatoes, cola, chipotle chiles and 1 1/2 teaspoons salt. Bring mixture to a boil, take off the heat, then add chicken in an even layer. The liquid won’t completely cover the chicken. Tuck lime slices into the sauce, then braise, uncovered, in the oven until the chicken is cooked through (35 to 40 minutes).